I'm having a bizarre issue with my computer. Just for the last couple of days for reasons I can't figure out, my computer will just inadvertently shut off as if the power has gone out. Just the computer itself goes off however, not the speakers, monitor, or printer or anything. I then cannot turn the computer back on, again as if it has no power. I have to turn off the power to my surge protect bar for about 10 seconds and then turn it back on and then the computer will come on again and be fine. Its happend 3 times in the last 2 days. Any suggestions?