Why are my DMA settings shut down my computer?

I have a MSI K9N Platinum motherboard, 2 GB's of DDR2 memory, 2 500GB hard drives all less than 2 months old and I have a new AMD 64 X2 5200+ processor. I have not had any problems burning CD's/DVD's in the past until I installed Nero 7. Now every time I try to burn anything my PC shuts down when burning process starts. I disabled my DMA settings to PIO and that stops the shutting down but I obviously can't burn correctly. Here is a list of things I have tried.

-Bought new CPU fan and Arctic Silver thermal grease

-bought new Ultra 550watt power supply

-reinstalled software

-Checked all Driver's, firmware,bios,software,etc...for updates

-Installed new antivirus,spyware software

-Installed system mechanic 7

-Installed info.log's but nothing registers before shutdown

-Bought new surge protector

-System restores

-Nero, MSI, Microsoft help sites

-Made sure I'm not overclocking

-trouble shot all hardware devices

-disabled Nvidia IDE Drivers and only used MS drivers

Any Idea's

Why are my DMA settings shut down my computer?vincent

They don't usually run DMA, and using it can cause them to malfunction.

Why are my DMA settings shut down my computer?adware remover

Why not disable the DMA?
clean your computer by CCleaner.