I also have the 0000009c problem. This is the code I get, and it's driving me mad. Category (102) Event ID: 1003 Error code: 0000009c, parameter1 00000000, parameter2 bab3c050, parameter3 b2000000, parameter4 1040080f. I 've had it for a month now. I tested my ram and there were no problems I bought a better graphics card and it didn't change a thing I updated all my drivers and system updates I reformatted the computer and put everything back in again, bit by bit, and still it didn't change a thing. I scanned for bugs and virus's, and fixed all registry files with regcure. I bought more powerful PSU and put extra fans, and the computer is well within allowed temperatures And still the computer restarts (To see the exact code and problem - click start - run - type eventvwr - double click on system, you should see a red circle with a white cross on the problem that causes the computer to restart. Double click on it to get the code.) My computer will always restart when playing a game, when on the internet, sometimes when just opening an application, and sometimes when listening to music. Any help!!!!! After talking with the support team in my nearby computer shop. They said that the most often problem is that your sound card is out of date, and is not compatible with the motherboard. I have SB live (soundblaster live) so I will either use the basic audio built into the motherboard or get a better one. But he said it is definately not your graphics card and not your Ram. It is most certainly a hardware problem that is caused by outdated incompatible sound cards and conflicts between Direct X and Audio input.