WordPress MU

hi,
just installed my wpmu, added some themes bla bla bla...
actaully blog signup in enabled and when i try to create a new blog without been logged in i have the possibility to choose the username and password, i submit then i get a page with blog name and so on and on the second submit (the final one) it redirects me to the homepage :-/

i have the possibility to choose the username and password

Are you using premium plugin for password field?

Any other plugins you use? Cause the thing you've described doesn't seem to be WPMUs standard signup.

i just use re-captcha.. nothing else

Well, are you sure you have WPMU and not WP? :)

:)

i can post my url if you want

OK, please, do :)

brixiazoo DOT org / wp-signup.php

Actually, it redirects me to signup page again.
Got plugins installed? Tried disabling re-captcha?