Every so often, my main page loads as a blank and I have to go into the theme lists and choose the theme again.
Whenever I get to the theme listing, it shows the current theme as " theme by ." So, there is no theme selected. When I click on a theme, it loads and the page is back again.
I have this problem every so many hits, so when I have more people, it happens more often. (Example: I had almost 800 hits a couple of days ago and I sat on the computer for the hardest hit hours, having to reset the theme about once an hour.)
It does not appear to be a problem with the theme itself, because it happens no matter what theme I have on.
Any ideas on what is causing this and how I can fix it?
This started happening around the time that I upgraded from 2.1 to 2.2. I am currently waiting to upgrade to 2.3 until I find out what this problem is.