Update: No luck with the HP 350929-001 board either, though it was far less 'balky' and showed much initial promise. Still, it locked up at the W98 splash screen, or at a black screen/flashing cursor after critical re-boots to fully initialize the pci-e card. Like the others it boots to Safe Mode, seems okay, then fails. I feel like I may be missing a critical fix, or a special step in the operation. Is there a proven W98se motherboard/pci-e 256mb gpu combo out there?