BuddyPress.org

I had a same problem, currently im using WP 2.9.2 with Buddypress 1.2.3, it works for a while but after several hour the crop image cannot preview the uploaded image. And I installed WP as a directory for example http://pheewit.com/ directly to the root of htdocs, I didnt upgrade from previous installation, all WP and BP are fresh install, and im using a default theme of buddypress.