my computer in sig(#1) has started to get flacky. not long ago, my comp would not turn the monitor back on after it goes into standby mode. to fix the problem all you had to do is restart the comp and all would be fine. now, it wont post or starts to but freezes after displaying the videocard info. i have taken out one of the memory cards and i got it to run for 6 straight hours before i shut it off so i can run memtest86 on it. and now it wont do anything again, no posting. i tried clearing cmos,removing video card and reinserting, swapping memory cards. the only thing the computer does is turn on the fans, the hard drive led and the 2 cd drive leds flash every once in a while.