The client seems to crash for me after few minutes of mining
running hp3-win64
on Win 7 x64 I7 930

any ideas?
This is what I got, and only once, only after hours of mining, and never again since restart.
EDIT This was with hp3, I7 2660
Any news on this? I seem to get this error every few hours on my i7 3930k (Win 7 x64) but not on any of my other machines with various Intel processors. A simple restart and it goes away, but if I'm not at my computer then I lose mining time until I can get back. If I had to make a wild guess, it's asserting that the thread pool has nothing but idle threads, but I've not waded through the source to find what the problem is.
I saw this same crash on one of my Linux boxes. Backtrace shows the crash happens when the mining threads are creating new blocks for mining. I think it's a bug in the original code that gets triggered more often because my code is running faster.