stirgy - 9:40 pm on May 16, 2010 (gmt 0)
Just a note:
Two weeks after replacing my APC Battery Back-up unit, my PC has been running fine and has not shut down since. Just a heads-up for those having a similar problem. The issue could be outside the PC. (Wiring, outlets, back-up units, faulty surge protectors, etc.)
Thanks for the input.