Booting up gets nowhere at all - the monitor doesn't even switch off standby.
The nVidia is an AGP 4x card. The machine is a brand new (arrived yesterday) IBM Netvista A22p, with an Intel 845 chipset and a Pentium 4 CPU. 1 Gig of memory, FWIW. Not sure who actually makes the motherboard - maybe IBM, maybe outsourced.
The video BIOS options seem very limited. I've taken a quick look, but didn't find anything hopefull to adjust.
The nVidia card works fine with an old Abit BP6, which has AGPx2 and a pair of Celeron 400's in it. However, as that doesn't have AGPx4 i'm not really comparing like with like, although it does show that I haven't zapped the graphics card somehow.
I've not had any luck searching for info online, other that confirming that the POST beeps were telling me the video system was ******ed. I kind of figured that one out for myself. I will ring IBM in the morning, but I'm betting they'll tell me to ring the card maker, who'll tell me to ring IBM, who'll....