Re: wp-signup.php is a blank page
I have the same problem.
It works fine with regular themes though, which is NOT a proper solution of course, for it would not include the social network features.
I find the fact that this topic is not answered and the main theme being bugged an OUTRAGE and an UNPROFESSIONAL ATTITUDE!
I have gone this far thinking buddypress was a professional item, may be I should change my judgment.
I can lose money a couple of days but after that I will go somewhere else if this problem isn’t fixed!