The BIOS changes were largely things like turning off the on-board sound, setting the clock and other sundries. Just general bits. I reset the BIOS a couple of times, no change.
The first 'power-on', on the new Mobo was done with everything in, so;
PCI: Soundcard, Wireless Network Card
AGP Slot: GeForce 4 Ti4200
The new Mobo is a PcChips M848ALU SKT A, with an AMD Athlon XP 2200+
ASI