Driver Blue Screen Problems

I'm having alot of trouble with blue screen errors. It is displaying the same message every time.
DRIVER_IRQL_NOT_LESS_OR_EQUAL
something else that was displayed was
Cmuda.sys - Address BA4A75E4 base at BA491000, DataStamp 3d24536
Me and my friend think it has something to do with the C-Media Sound Driver, but we are not sure. Any ideas how to fix it?

Well you could try and updating the device drivers for the C-Media Sound card. How long does the system run stable before it BSODs?

It doesn't go to the blue screen after so long. It is just very random. Today it happened 3 times, but yesturday it didn't even happen once.

Where could I go and get the new drivers?

have a look on http://www.cmedia.com.tw/e_download_01.htm

Try booting into safe mode and update the drivers.

PCI

CMI8738 6CH/4CH PCI Audio Single Chip
CMI8338 4CH PCI Audio Single Chip
CMI8330
Other Update

which one do I need?

Is your sound card onboard or PCI?

I believe it is onboard, as some drivers were on the Motherboard disc.