Why your mouse might move erratically

My father in laws mouse jumps while he is working on the computer. (He plays alot of different internet games) He has a logitech optical mouse that connects via the USB port. We thought that might be the problem so we replaced its drivers. That didn't work. Then we tried my mouse on his computer, but it jumped on his (his mouse worked fine on mine). So we thought maybe it was the monitor so we switched them. His monitor worked fine on my computer but the mouse still jumped when he used my monitor on his computer. I went in to see if there were any IRQ conflicts but there didn't seem to be any (at least none were marked as being conflicting).

We have taken it to our local tech. who tried to fix this by replacing the video card, then the OS then the RAM, Motherboard, Power Supply and finally the Harddrive. So now my father in law has an almost completely new system, and guess what...the mouse still jumps. Could you give us any idea what the problem could be? Our tech. seems to be at a loss. Thanks

This question was answered on February 2, 2003. Much of the information contained herein may have changed since posting.

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The problem may be your adapter card Check in the Device Manger Properties window At the opening of windows Update Device Driver Wizard choose the next button then choose the default action window which will search for a better driver than the one you device is useing now then choose the next button now if the device came with a software or floopy disk put it in the driver and then check the floopy disk drivers check box check that the installsoftware automatically is selected this is youe default button.when you clikc the next button the window will fine the new driver.

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Posted by linda of Katharine Gibbs School - New York on February 2, 2003

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