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#11
Hello loox
Symantec has known problems with drivers, I would do as zigzag suggests, if the problem does not go after it is uninstalled, you can always reinstall Symantec.
Reading through the posts I would concentrate on a memory problem, if resetting the defaults in BIOS does not fix the problem, try removing one stick of RAM and see what happens. If the problem persists I would then try with just the other stick.
Also running memtest as suggested by essenbe is a good idea.