Help - "Cannot start a transaction within a transaction"

This is my first Rails app, and things are going pretty well with he
exception of an error that seems to be configuration-related.

I'm getting a strange error on my (Railsplayground) deployed app using
fast-cgi, Ruby 1.8.6, Rails 2.02, and sqlite 3.3.6 with sqlite3-ruby
1.2.2. The exception seems to be raised before it gets to my code.
Other parts of the application work fine, including parts that read
and write from the database. It also works fine on my development
machine using the same setup, but in Windows (and development mode
rather than production)
.

# Logfile created on Sat Jul 26 18:59:17 -0400 2008

Processing CardsController#index (for 96.252.14.83 at 2008-07-26
18:59:17) [GET]
  Session ID: 2b27ab72cff4dd2d83e4c97585743004
  Parameters: {"action"=>"index", "controller"=>"cards"}
Rendering template within layouts/cards
Rendering cards/index
Completed in 0.98825 (1 reqs/sec) | Rendering: 0.68043 (68%) | DB:
0.00000 (0%) | 200 OK

Processing CardsController#index (for 96.252.14.83 at 2008-07-26
18:59:18) [GET]
  Session ID: 2b27ab72cff4dd2d83e4c97585743004
  Parameters: {"action"=>"index", "controller"=>"cards"}

SQLite3::SQLException (cannot start a transaction within a
transaction):
    /usr/local/lib/ruby/gems/1.8/gems/sqlite3-ruby-1.2.2/lib/sqlite3/
errors.rb:62:in `check'
    /usr/local/lib/ruby/gems/1.8/gems/sqlite3-ruby-1.2.2/lib/sqlite3/
resultset.rb:47:in `check'
    /usr/local/lib/ruby/gems/1.8/gems/sqlite3-ruby-1.2.2/lib/sqlite3/
resultset.rb:39:in `commence'
    /usr/local/lib/ruby/gems/1.8/gems/sqlite3-ruby-1.2.2/lib/sqlite3/
resultset.rb:29:in `initialize'
    /usr/local/lib/ruby/gems/1.8/gems/sqlite3-ruby-1.2.2/lib/sqlite3/
statement.rb:135:in `new'
    /usr/local/lib/ruby/gems/1.8/gems/sqlite3-ruby-1.2.2/lib/sqlite3/
statement.rb:135:in `execute'
    /usr/local/lib/ruby/gems/1.8/gems/sqlite3-ruby-1.2.2/lib/sqlite3/
database.rb:182:in `execute'
    /usr/local/lib/ruby/gems/1.8/gems/sqlite3-ruby-1.2.2/lib/sqlite3/
database.rb:157:in `prepare'
    /usr/local/lib/ruby/gems/1.8/gems/sqlite3-ruby-1.2.2/lib/sqlite3/
database.rb:181:in `execute'
    /usr/local/lib/ruby/gems/1.8/gems/sqlite3-ruby-1.2.2/lib/sqlite3/
database.rb:558:in `transaction'
    /usr/local/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/
active_record/connection_adapters/sqlite_adapter.rb:156:in
`begin_db_transaction'
    /usr/local/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/
active_record/connection_adapters/sqlite_adapter.rb:345:in
`catch_schema_changes'
    /usr/local/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/
active_record/connection_adapters/sqlite_adapter.rb:156:in
`begin_db_transaction'
    /usr/local/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/
active_record/connection_adapters/abstract/database_statements.rb:
63:in `transaction'
    /usr/local/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/
active_record/transactions.rb:80:in `transaction'
    /usr/local/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/
active_record/transactions.rb:100:in `transaction'
    /usr/local/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/
active_record/transactions.rb:108:in `save'
    /usr/local/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/
active_record/transactions.rb:120:in `rollback_active_record_state!'
    /usr/local/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/
active_record/transactions.rb:108:in `save'
    /usr/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
action_controller/session/active_record_store.rb:310:in `update'
    /usr/local/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/
active_record/base.rb:1198:in `silence'
    /usr/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
action_controller/session/active_record_store.rb:310:in `update'
    /usr/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
action_controller/session/active_record_store.rb:317:in `close'
    /usr/local/lib/ruby/1.8/cgi/session.rb:324:in `close'
    /usr/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
action_controller/base.rb:1247:in `close_session'
    /usr/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
action_controller/base.rb:1292:in `process_cleanup_without_flash'
    /usr/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
action_controller/flash.rb:173:in
`process_cleanup_without_session_management_support'
    /usr/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
action_controller/session_management.rb:133:in
`process_cleanup_without_components'
    /usr/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
action_controller/components.rb:161:in `process_cleanup'
    /usr/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
action_controller/base.rb:532:in `process_without_filters'
    /usr/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
action_controller/filters.rb:685:in
`process_without_session_management_support'
    /usr/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
action_controller/session_management.rb:123:in `process'
    /usr/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
action_controller/base.rb:388:in `process'
    /usr/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
action_controller/dispatcher.rb:171:in `handle_request'
    /usr/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
action_controller/dispatcher.rb:115:in `dispatch'
    /usr/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
action_controller/dispatcher.rb:126:in `dispatch_cgi'
    /usr/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
action_controller/dispatcher.rb:9:in `dispatch'
    dispatch.cgi:10

Rendering /home/terron/stagingareas/public/500.html (500 Internal
Server Error)
/!\ FAILSAFE /!\ Sat Jul 26 18:59:18 -0400 2008
  Status: 500 Internal Server Error
  cannot start a transaction within a transaction
    /usr/local/lib/ruby/gems/1.8/gems/sqlite3-ruby-1.2.2/lib/sqlite3/
errors.rb:62:in `check'
    /usr/local/lib/ruby/gems/1.8/gems/sqlite3-ruby-1.2.2/lib/sqlite3/
resultset.rb:47:in `check'
    /usr/local/lib/ruby/gems/1.8/gems/sqlite3-ruby-1.2.2/lib/sqlite3/
resultset.rb:39:in `commence'
    /usr/local/lib/ruby/gems/1.8/gems/sqlite3-ruby-1.2.2/lib/sqlite3/
resultset.rb:29:in `initialize'
    /usr/local/lib/ruby/gems/1.8/gems/sqlite3-ruby-1.2.2/lib/sqlite3/
statement.rb:135:in `new'
    /usr/local/lib/ruby/gems/1.8/gems/sqlite3-ruby-1.2.2/lib/sqlite3/
statement.rb:135:in `execute'
    /usr/local/lib/ruby/gems/1.8/gems/sqlite3-ruby-1.2.2/lib/sqlite3/
database.rb:182:in `execute'
    /usr/local/lib/ruby/gems/1.8/gems/sqlite3-ruby-1.2.2/lib/sqlite3/
database.rb:157:in `prepare'
    /usr/local/lib/ruby/gems/1.8/gems/sqlite3-ruby-1.2.2/lib/sqlite3/
database.rb:181:in `execute'
    /usr/local/lib/ruby/gems/1.8/gems/sqlite3-ruby-1.2.2/lib/sqlite3/
database.rb:558:in `transaction'
    /usr/local/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/
active_record/connection_adapters/sqlite_adapter.rb:156:in
`begin_db_transaction'
    /usr/local/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/
active_record/connection_adapters/sqlite_adapter.rb:345:in
`catch_schema_changes'
    /usr/local/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/
active_record/connection_adapters/sqlite_adapter.rb:156:in
`begin_db_transaction'
    /usr/local/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/
active_record/connection_adapters/abstract/database_statements.rb:
63:in `transaction'
    /usr/local/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/
active_record/transactions.rb:80:in `transaction'
    /usr/local/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/
active_record/transactions.rb:100:in `transaction'
    /usr/local/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/
active_record/transactions.rb:108:in `save'
    /usr/local/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/
active_record/transactions.rb:120:in `rollback_active_record_state!'
    /usr/local/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/
active_record/transactions.rb:108:in `save'
    /usr/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
action_controller/session/active_record_store.rb:310:in `update'
    /usr/local/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/
active_record/base.rb:1198:in `silence'
    /usr/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
action_controller/session/active_record_store.rb:310:in `update'
    /usr/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
action_controller/session/active_record_store.rb:317:in `close'
    /usr/local/lib/ruby/1.8/cgi/session.rb:324:in `close'
    /usr/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
action_controller/base.rb:1247:in `close_session'
    /usr/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
action_controller/base.rb:1292:in `process_cleanup_without_flash'
    /usr/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
action_controller/flash.rb:173:in
`process_cleanup_without_session_management_support'
    /usr/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
action_controller/session_management.rb:133:in
`process_cleanup_without_components'
    /usr/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
action_controller/components.rb:161:in `process_cleanup'
    /usr/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
action_controller/base.rb:532:in `process_without_filters'
    /usr/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
action_controller/filters.rb:685:in
`process_without_session_management_support'
    /usr/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
action_controller/session_management.rb:123:in `process'
    /usr/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
action_controller/base.rb:388:in `process'
    /usr/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
action_controller/dispatcher.rb:171:in `handle_request'
    /usr/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
action_controller/dispatcher.rb:115:in `dispatch'
    /usr/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
action_controller/dispatcher.rb:126:in `dispatch_cgi'
    /usr/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
action_controller/dispatcher.rb:9:in `dispatch'
    dispatch.cgi:10

Thanks,
Lee