Help!  I upgraded my PC about a month ago and now it will not boot up.  I hear the fan motor running but no beep, nothing on monitor.  Lights flicker.  I upgraded to Windows XP and ADDED 128 MB (192MB Total) ram to my E-machine 600. Also added a cordless mouse. Since then, when I shut down the PC it will not power off on its own,  I have to push the power buttor to turn it off.  Yesterday,  I turned on the PC and it rebooted to the users screen but when I clicked my name the PC shut off and I can't get it to reboot since.  Any suggestions?192 MB is rather low for Windows XP. 512 MB gives a much better result. Even doubling up from 256 to 512 MB makes a huge difference.

Did you do a clean install of XP and can you go back to your original mouse?

Have you enabled APM in the power settings?



I did a clean install of XP.  I did not MAKE any changes to Power setting.  (didn't KNOW how.)  The research I did on my PC indicated that 256MB was most RAM I could go up to??  I can go back to old mouse if I can get the PC to boot up again.Have you added a new graphics card to this pc?....what happens if you hold down the F8 on boot......does it display the black screen....