mysql_adapter.rb:576: [BUG] Segmentation fault

Hello there,

I am encountering segfaults with following:

ruby 1.8.6 (2008-08-11) [i386-mswin32] on windows 7,
rails 2.3.2,
mysql (2.7.1) gem and
MySQL 5.0.87-community-nt-log

Tried with MySQL 5.1 and mysql gem 2.8.1 with no luck.

Loga are showing:

C:\Users\Alex\Documents\IT\ruote-web2>ruby script\server --port=3333
=> Booting Mongrel
=> Rails 2.3.2 application starting on http://0.0.0.0:3333
.. Ruote workflow/BPM engine started (ruote_plugin)
.. found C:/Users/Alex/Documents/IT/ruote-web2/lib/ruote.rb
=> Call with -d to detach
=> Ctrl-C to shutdown server
.....
  Group Load (0.0ms) SELECT `groups`.* FROM `groups` INNER JOIN
`user_groups`
ON `groups`.id = `user_groups`.group_id WHERE ((`user_groups`.user_id
= 1))
  Group Columns (2.0ms) SHOW FIELDS FROM `groups`
Completed in 66ms (View: 32, DB: 5) | 200 OK [http://localhost/
processes]
C:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.2/lib/active_record/
connection_a
dapters/mysql_adapter.rb:576: [BUG] Segmentation fault
ruby 1.8.6 (2008-08-11) [i386-mswin32]

C:\Program Files\MySQL\MySQL Server 5.0\bin\mysqld-nt, Version: 5.0.87-
community-nt-log (MySQL Community Edition (GPL)). started with:
TCP Port: 3306, Named Pipe: (null)
Time Id Command Argument

091116 16:38:29 18 Connect ruote@localhost on rw2_development
         18 Query SET NAMES 'utf8'
         18 Query SET SQL_AUTO_IS_NULL=0
         18 Statistics
091116 16:38:30 18 Query SHOW FIELDS FROM `users`
         18 Query SELECT * FROM `users` WHERE (`users`.`id` = 1)
LIMIT 1
         18 Query SELECT `groups`.* FROM `groups` INNER JOIN
`user_groups` ON `groups`.id = `user_groups`.group_id WHERE
((`user_groups`.user_id = 1))
         18 Query SHOW FIELDS FROM `groups`
         18 Statistics

Can anyone help with this problem?
Thanks a lot in advance.