A few nights ago I shut my computer off and then tried to boot it up the following morning. However, when i tried booting it up nothing happened. I thought the switch was bad I replaced it. But it still wont boot. The RED LED is on when the power is connected but nothing happens whens I press the power switch. No flashing LEDs or nothing... I have an AMD Athlon 2200 XP and I have an Antec 400w that I have had about over 2 years. I have had the motherboard for atleast 2 years as well. I just got 1gb of RAM last August. The battery nor the CMOS is the problem... any advice? I checked my CPU and it didn't look like it was burnt/dead/etc.