Ok, I was restarting my computer it turned on, but had a 2 second flash on off and continued booting on the Windows XP load screen after bios. Then it shuts down and turns back on and does it all over again. Then I turned it off by holding in power button, and when I try to turn it back it the tower stays on but it won't seem to send a signal to my monitor to display a picture or something. I don't know if their is something wrong with my tower or what, my monitor is perfectly fine I have it hooked up to my laptop and am using it now as I type this. I don't know what it is I've heard PSU or motherboard but my computer is still turning on. Any help appreciated. Computer Specs: eMachines AMD Sempron 3000+ 2.0 Ghz 512 MB RAM Geforce 4 MX Intergrated 64 MB 80 Gigabyte harddrive Windows XP Home Edition and I know eMachines isn't good and I've had for two years.