BuddyPress.org

Don’t ask me how it’s possible, but I got it working.

I have done a clean install of WPMU 2.6.5, checked that I could add a picture to a post and that worked, as it did before.

Upgraded to the latest trunk version of WPMU 2.7, upgraded the database, checked again and it’s still working. I have no clue how it’s possible.

The only difference is that I now used firefox for the installation and the first blog post, instead of using Safari. I can’t imagine that is the reason of the problem, but for the moment I’m a happy man.