Kernel-41 Issue is Becoming Annoying

I have been running Windows 7 Prof since about January or February. When i First installed i got a problem with my computer crashing almost every hour while in MW2, i thought i had fixed it by changing around some options. Now the problem is back. It has been back for a month or so, but i stopped playing the games that caused it. Really i just need help identifying what i need to change to make it stop, seeing how i'm at the point were i want to throw my computer at the wall, so today i decided to make a stand. There is no BSOD, just a Kernell-41 Power issue!

- x86
- Vista was installed first, was tired of it so Upgraded to Win7
- Full Retail

THERE IS NO BSOD, JUST A CRASH WERE THE AUDIO GLITCHES AND LOOPS, AND THE SCREEN GOES BLACK WITH IT SAYING MONITOR GOING TO SLEEP

EVENT VIEWER KERNEL-41 ISSUE
The system has rebooted without cleanly shutting down first. This error could be caused if the system stopped responding, crashed, or lost power unexpectedly.

- System

- Provider

[ Name] Microsoft-Windows-Kernel-Power
[ Guid] {331C3B3A-2005-44C2-AC5E-77220C37D6B4}

EventID 41

Version 2

Level 1

Task 63

Opcode 0

Keywords 0x8000000000000002

- TimeCreated

[ SystemTime] 2010-07-27T19:23:10.159613400Z

EventRecordID 42840

Correlation

- Execution

[ ProcessID] 4
[ ThreadID] 8

Channel System

Computer Rabbert-PC

- Security

[ UserID] S-1-5-18


- EventData

BugcheckCode 0
BugcheckParameter1 0x0
BugcheckParameter2 0x0
BugcheckParameter3 0x0
BugcheckParameter4 0x0
SleepInProgress false
PowerButtonTimestamp 129247320054041951

THERE IS NO BSOD, JUST A CRASH WERE THE AUDIO GLITCHES AND LOOPS, AND THE SCREEN GOES BLACK WITH IT SAYING MONITOR GOING TO SLEEP

That is what i was thinking...my rig only has room for 2 gigs of RAM.

My computer always gets an error whenever trying to burn anything to a disk. Saying something about the speed being incompatible