As mentioned, clear your cache. I have no problem with Firefox 7.01 or Iron (Chromium ) on Windows. I would also deactivate all plugins and see if that fixes it. If so then activate them one by one and see if you can find which one causes the problem. What happens if you use another theme? Do you have another computer to test on? The idea is to find out WHY the issue is happening and narrow it down a bit.
