actionmailer and warning: regexp match /./n against to IBM437 string

Hello guys!

Here is my code. My platform is vista.

This is familiar , it look like this problem

http://openhood.com/rack/ruby/2010/07/15/rack-test-warning/

read the article and see if its your case, i hope it helps

If I understand well, I'm doing nothing wrong ? The only solution seems
to mute the warnings ?