Thanks for the tips. I checked out the Legacy CPG, and sure enough I had the SCSI and V601 cards in the wrong PCI slots. Once I swapped them around, I had playback without freezing (so far). I hope this works so that we don’t have to spend $595 for the iTuneUp software upgrade package – The Powers That Be will send me back to the ol’ 9500!
Thanks again for the quick responses and great info.