DRIVER_IRQL BSoD

[BradStoube]

Okay, so i havent had a single problem until i installed my new GFX card, i didnt like it so i took it out and put in my old card, couldnt play World of Warcraft. so i re-installed Windows Xp, re-installed WoW, re-installed all gfx card drivers and chipset drivers and WoW opens, when i log on and it is about to load the world server to where i can play it gives me a Blue screen of death on ONLY my main character, all other characters work fine. this is the error that it gives me on my BSoD

DRIVER_IRQL_NOT_LESS_OR_EQUAL

If probelms continue, disable or remove any newly installed hardware or software. Disable BIOS memory options such as caching or shadowing.

***STOP: 0x000000D1 (0x00000012, 0x00000002, 0x00000000, 0x00000012)

Beginning dump of physical memory
Physical memory dump complete

does anyone know what this error means or how i can fix it, i am desperate.

[yamangman]

Most likely a driver issue. Since you've just reformatted, reformat again, preferably installing drivers and servicepacks in the 'right' order.

[JohnS]

ignore this

[yamangman]

Ignore this?

[JohnS]

i typed it then realised i was completely off the subject so i edited with "ignore this"