I have a computer with a Jetway 620BF Motherboard. The computer seems to have a bit of a problem. Everytime i installed a new peice of hardware in my computer such as a modem or ram the mouse pointer on the screen would not move so i had to take the hardware out and muck around with the motherboard abit and eventually it would work again. I recently added a second hard drive to my computer and found that when i turned on the computer the mouse would not move. So i turned the computer off, took the second hard drive out and turned it back on. The mouse pointer still didnt move and it never did again. No mater what i do with the computer now the mouse pointer does not move at all. I tried connecting a serial mouse to the computer but that didnt work neither. Any ideas on what might be wrong? The computer is running Windows XP Home SP1.