Hi people! I've the same problem using wp 2.5 beta1, wp 2.3.3 and wp 2.3.2. and with both ie and ff..
I'm using ajax-login version 1.0. The plugin uses the normal wordpress 2.2 authentication process as cut'n'pasted from wp-login.php so I don't know if authentication works different in newer versions or something like this...
Anybody can help us please? this plugin is great and there's no other plugin like this (why?) a lot of photo plugins, media, seo but nothing to integrate the login in the frontpage with ajax style..
Thanks in advance!