I just built a new computer for myself and it was running fine for about a month and then one day I go to power it up and the light on the monitor turns green for a second and then it goes into sleep mode (amber color light). I have an optical mouse and that lights up, but the lock lights on the keyboard won't light up. The next day I went to boot it and the computer itself wouldn't even turn on. So I thought it was the power supply so I got a new power supply and now it turns on, but its doing the same thing with the monitor and keyboard. If anyone could help me out I'd appreciate it.