Well... I had the same problems... I tried all the possible tricks, without success !
Then, I decided to send back the PPC card to Phase5 (R.I.P. !), to see if they could do something... when I got it back, everything was ok, no more freezing or crashes or whatever !
The technical note about what they done on it was in german, and I don't remember it (maybe a rom problem)...
I don't know if DCE can still fix it, but I heard that some people never got their card back from them...
Try that anyway !
Cheers...
