At the begining, I thought there was an issue with my HTML or CSS files. But then I realized that other people using Wordpress 3.1 had the same problem (check out this link).
The admin bar disappears when I click another 'Pages' or 'Posts,' but it leaves its 28px padding at the top of the page.
I'm not sure if this has something to do with folder's permission issues in ubuntu (I'm using ubuntu 11.04). I did chmod -R 777 to my www folder (the default folder for my locahhost), but I'm still having the same issue.
Any suggestions to fix this?
