DMA stands for direct memory access... Eh, this is some pretty deep system stuff, and usally generic, I don't know why you're getting an error O.o
What OS are you running? What kind of computer do you have? Could you get us some info on it. Reloading the motherboard drivers might help but this one is a bit odd...
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Desktop * Athlon X2 4200 | 2G RAM | 160G HD | 7600GT
Laptop1 * C2D T5550 | 3G RAM | 120G HD | Intel x3100
Laptop2 * C2D T5250 | 2G RAM | 160G HD | Intel x3100
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