I recently upgraded my motherboard and processor. My motherboard is ASRock 4coredual-sata2, and my processor is Intel Pentium Dual Core E2180 2GHz. I have been having completely random restarts, which makes me paranoid that it'll restart whilst I'm doing work so I have to save very often. Thing is- the computer DIDN'T restart for about 5 days, which I left it on for, until I had to restart in order to complete the installation of some new software, and then the restarts started happening again. I checked in my Event Viewer and found that there's one error, every time it restarts, which is ati2mtag, which says 'CRT invalid display type'. I've tried installing new drivers for the graphics card (I have Radeon 9600pro) but this does nothing. I heard in many places that people have had troubles with their Creative Audigy 2... Well, I have Audigy 4 Pro, would this still create the restarting problems? I haven't managed to find a solution to the Audigy 2 problem anywhere... I've tried different sticks of RAM, and there's been no problems. Of course, if it were a RAM problem, I would've had restarts during the 5 days it was left on for, as I did play games during that time. I also have a new monitor, as the old one died just recently- it is a refurbished Compaq 7550, which I had to download drivers of to get it to show up in Display Properties. I have a few unsigned drivers apparently, which are: ctdlang.dat, adgelp.ini, adpdf8.ppd, ps5ui.dll, pscript.hlp and pscript5.dll. Please note- I'm not getting any blue-screens, and I have unchecked the 'automatically restart' box. It just randomly restarts, its not overheating at all (this room is probably about 10'c, and the case is off on the computer and everything is normally around 30'c) and it isn't dust-related, I think. I formatted after getting the new motherboard (I have 3 hard drives, didn't want to lose everything on them but because of the constant random restarts to start with (because of complete system instability) I formatted another hard drive which wasn't the windows drive, which of course I formatted because of driver chaos) and did tests to see if the hard drives were alright- they were. I've made sure that windows messenger isn't running ever (seen a thread somewhere saying it can cause restarts, somehow) and I've made sure that I'm only running the necessary processes for the sound card. Any support would be greatly appreciated!