Plugins/Themes Bizarre After Upgrade

After much pain and struggle I managed to get a successful upgrate to 2.02 – problems getting it to work unlike every previous version I’ve upgraded to.

Well, now I’ve got it more or less working, but all of my plugins and themes are screwed up. When you look at them in the admin tool they display as their raw code rather than a name or a description or an image. So I go to activate a plugin and there’s the entire text of the plugin where I’d expect the description and name to be. Makes it hard to figure out what I’m activating. Same thing with themes.

Intersesting thing is that once I figure out where to click to activate them they do seem to still work.

Is this a common problem?

Dave