I too am having a problem with nv4_disp and WXPPSP1.
Specs are:
Intel P4 2.8GHz CPU
Epox 4PDA2+ Motherboard
1GB DDR400 Memory
Benq DVD/CD combo (IDE 1 Slave)
Denq 52x CD-ROM (IDE 1 Master)
Dimaond Data DVD Burner (IDE 2 Master)
Promise 150 SATA TX2 Controller
2 x 36GB WD 10KRPM HDD
NVIDIA GeForce FX 5200 (128.0 Mb): 1280 x 768 - High Color (16 bit)
Broadcom NetXtreme Gigabit Ethernet
Seems whenever the system sits a period of time it'll trigger the system and it goes into a BSOD.
What I've done so far:
updated the BIOS
updated the video drivers
updated the NIC driver
Still BSOD with same error NV4_DISP
Anyone has any idea what is causing this. I see I can't ask Nvidia about their website don't really accept question regarding their GC.
Thanks