Camino has stopped working with Gmail. I assume the bug is well understood -- it's not obscure! The screen redraws constantly, never progressing beyond the first 20 pixels or so.
I tried upgrading to the new 1.6, but it has the same problem. I'm back to Firefox beta 3 for now. (Safari has never worked well with Google products, and it still doesn't.)
I'm surprised there's no fix yet.
Update 4/28/08: I followed the advice in comments; emptying the cache fixed the problem. It's funny, I used to empty the cache the first time I had browser problems, but it's been years since that did anything. I just lost the habit ...