I am not sure if someone noticed yet, but the captcha routine puts non alpha characters into the security picture. It took me 3 tries before I get an all alpha picture. I had smiley face, fire truck, and a house show up...
May be someone enabled wingdings for captcha?
Posts: 7994
Doh! This is a bug in the Drupal captcha module! I've fixed it on our site, and posted a patch back to Drupal. Thanks for the heads up!