One problem was that I had reset the 'Advanced Overclocking Features' in the BIOS to "Auto" instead of "Standard." In other words, I did not reset the cmos.
Still, even once I had done this (and thus all evidence of an overclocking attempt erased from the BIOS) When I ran Prime95, I encountered a problem:
Hardware failure detected, consult stress.txt file.
Torture test ran 3 hours, 7 minutes - 1 errors, 0 warnings.
Execution halted.
In other words, even when I have NOT OVERCLOCKED my comp AT ALL, I am getting a "Hardware failure" after a few hours of Prime95.
And temps are not an issue; they never deviated from 25 Degrees C. - In other words, I am not overheating.
So what is wrong with my computer? Why am I getting this crash in Prime95 when I have NOT overclocked?
Thanks again for your Help.