I'm having a lot of problems with 2.5... almost thinking about turing back to 2.3.3
First - on the dashboard, nothing besides "Right now" and "Recent Comments" loads. NOTHING!
Second - widget sidebar only allow me to add widgets on sidebar 1. besides, where's that easy to use moving things from one sidebar to another?! bad wordpress! devolution sucks!
Third - the media library buttons on the "write post" page have just plain disappeared. I can't add media anymore.
Fourth - once I save a draft/post, I can neither change the post owner nor change it's publishing time. Changing date sometimes works, but time, NEVER!