Re: Installation gives a blank screen
gnesher, who is your web host? Like Mike said, it’s probably a conflicting plugin of some kind…
It could be a missing function, a duplicate function, or anything in between, as well as an out of memory error, an incorrect PHP version error, etc…
Blank screens are the hardest to trouble-shoot, but you start by scaling back the active volume of PHP code that is loaded at one time, and adding it in pieces until you find the offending code segment. I.E. disable plugins, and reactivate them one by one. Maybe even turn them all off, activate ONLY BuddyPress, and see if it white screens. If it does, then it’s either not installed correctly, or it’s a server error of some kind.