Hi Brian.
I'm sorry to hear about your folding issues. Were you running the v6.22 SMP client by chance? If so, that was the root of the problem. It's still in beta and has known issues. In fact, they have extended the life of the older clients while the get the V6.22 releases bugs sorted out.
http://foldingforum.org/viewtopic.php?f=8&t=4369
http://folding.typepad.com/news/2008...mp-client.html
The GPU2 client seems to be rock solid for me so far after 3 weeks.
Anyway, I'm sorry to hear you won't be folding any longer.