I upgraded to 3.0.4 this morning (I believe I was previously running 3.0.1) after seeing the security warnings and Media Temple setting up the automatic update button to work for the newest version.
It appeared to go without a hitch. However, now when I go to the list of my posts, nothing is there; the posts still appear on my site, and it says it's showing me 1-20 of 312 posts. When I go to the editor, the whole right sidebar that I had previously is gone; no way to add tags or set up a delayed posting. The editor looks like an older version. I get this behavior in both Safari and Firefox. When I tried to make a post with an image in the visual editor, it does not show the image like it used to, just the html code.
Is this just something I need to wait to straighten itself out (database refreshing)? Or is this an actual problem with the upgrade?