Just so ya know...my computer is 14 months old - a DELL Dim4700 - Pentium 4 CPU - 2.80 GHz - 504 mb ram - WinXP Home
A problem has been detected and windows has been shut down to prevent damage to your computer.
DRIVER_IRQL_NOT_LESS_OR_EQUAL
If this is the first time you've seen this stop error screen, restart your computer. If this screen appears again, follow these steps:
Check to make sure and new hardware or software is properly installed. If this is a new installation, ask your hardware or software manufacturer for any windows updates you might need.
If problems continue, disable or remove any newly installed hardware or software. Disable BIOS memory options such as caching or shadowing. If you need to use safe mode to remove or disable components, restart your computer, press F8 to select Advanced Startup Options, and then select Safe Mode.
Technical Informations: ***STOP: (0X000000D1, 0X00000002, 0X00000000, 0X7C90EB94)
Beginning dump of physical memory
Physical memory dump complete.
Contact your system administrator or technical support group for further assistance.
I'm on the computer now and everything seems normal right now. I have no idea what software or hardware could be causing the problem, so I wouldn't know which manufacturer to contact or which software or hardware to uninstall.

Also, I don't even know what they mean by disabling BIOS memory options such as caching or shadowing.
I have removed AOL from my computer (which I got last fall after the hurricane when we were w/out cable for so long), except AIM, and a few other programs I wasn't using. I don't know if that will help though.
Also, I saw a bunch of stuff in my Add/Remove programs list that I don't know what they are. Some of them are by DELL and been on there since I got it, so I left those alone. Here's a few. Anyone know if I need this stuff? No clue what it even is! (except the NetZero installers...do I really need that on here?)
ANIO Service
ANIWZCS2 Service
Net Waiting
NetZero Installers
Odyssey Client
Pure Networks Port Magic
...just to name a few