>Almost certainly bad hardware of some kind. From what you describe, my first guess would be bad RAM - check with the MemTest86+ download I recommended the other day.
When running that test, are we suppose to get 0 error, assuming that all would be ok with the memory? Or, is it normal I have 18432 errors and counting, as the test is only at 32% right now. I figure out it would take about 30 minutes to do the entire test. Is this about how it ran for you?