Thank you everyone for your help. GOT IT WORKING. Donald said, "hey, why don't you check your interrupts?" I said, "no way, I know they're ok!" for kicks I checked. And I'll be damned if that wasn't what it was! Tuilp version .90z is working great with the CNET PRO120 100BaseTX card. I'll run it through some tests and see how well it works and report back later. JDB