My son has an eMachine model 2825. It is only 2 years old. One minute is working fine. He walked away for a few minutes and when he came back the monitor had the OSD up but you could not control the screen. It almost appeared frozen. So, naturally I first tried to restart the machine. The same thing happened on startup. I turned the machine off and tried eMachine support...useless because it's out of warranty. When I attempted to power it up again, nothing happened. The fan didn't come on...no lights. So, I replaced the power supply. Now it comes on but doesn't attempt to boot. The OSD comes up on the monitor. My other son had a newer eMachine. I've tried the monitor with his tower and the monitor itself for the 2825 works fine. When I tried a different monitor with the 2825, it was blank. I'm assuming that the OSD comes on because it isn't getting a signal. Any suggestions as to what I should try next?