Need some help. I have a Gateway E-3400 (667mhz cpu/128mb mem) running Windows 2000 Pro. The system keeps locking up. It seems to lock up when 3 applications are started. I started word then excel and when I tried to run powerpoint it initiates the startup of the application and then the hard drive locks up. I can't cntrl alt del nor can I power it off with the power button. I have to unplug it to power it down. My questions is could a bad memory dinn be causing this? Perhaps it is hitting a corrupted page of memory and causing the lockup? If anyone has had this happen or has any suggestions I would greatly appreciate it.