I am trying to help a friend out with his computer. It is a HP laptop model G72-259WM. The problem first starts with the keyboard. When typing in the password after several keystrokes the keyboard will lockup. I plugged in a usb keyboard and am able to login. The password is 12 charecters. Then I tried to type in notepad and after typing a line or two, the usb keyboard will lockup. I ran memtest86+ and memory fails. I install differnet menory to test and still has the same problem. I ran memorytest86+ again with different memory and no problems. I tried to boot to Bart's boot disk and gets BSOD. I was able to boot to Pupplinux. When typing a text document, it locked up again, took half a page. Touch pad locked up also and had to shutdown with power button. I know the memory is bad, trying to figure out if the motherboard is bad also. Not sure how to test that. The computer is only 1 1/2 years old. Since is locks up with Puppylinux I would not think it is a hard drive O/S issue. Any ideas?