Here's what I do when there are many database errors:
1. I go to the new posts link in the top menu:
http://projectavalon.net/forum/search.php?do=getnew
2. I open each thread I wanna read in a new window. There is always one that is going to load.
3. I refresh the others with database errors and read the ones that loaded.
It's a cross-reading process that requires more concentration but at least I don't hang too long in front of blank pages.