Help me with a computer problem

restart the machine keep pressing F8 when booting so that you get it into safe mode.
in safe mode, try uninstalling driver of the mouse, u can do this by right clicking on my computer, then hardware, then device manager, expand "mice and other pointing devices" right click on "PS/2 Compatible Mouse" and then uninstall it, reboot the machine. ope this will help you.

replace batteries they get weak and cause mouse to act strange

replace mouse

replace mouse pad, make sure you use mouse pad

clean led light

clean mirror

I got a cheap replacement plug-in led mouse for under 9 bucks Walmart

No, the usb feed coming from computer to mouse is keeping the light on. check for the usb port as around 5v of current flows across it...

I take it that it is a led mouse (red light under it)..

Get a brush and brush where the light is under the mouse, sometimes a tiny hair or bit of fluff can stick in there and cause that problem...

change the mouse

This could happen if the PS/2 connector on the motherboard is defective, or if there is a failing component in the PS/2 circuitry on the motherboard.
Could also be due to loose solder points at the PS/2 connector.
This needs to be checked by a qualified technician.

Seems there is something internally wrong in your mouse or you use the mouse on a very strange material base. I have heard that optical mouses can have strange behavior when used on glass tables or thick woolen carpets, a mouse pad would solve it. If that does not work and it's still under warranty, just ask for replacement or repair.

In windows xp go into start menu, then into control panel then click on appearance and themes, then move your mouse over to mouse pointers click on it , uncheck "enhance pointer precision, and click apply, that will stop the mouse from acting crazy, this will work with dell mouse pointers and most.

i have latitude c610 and same problem happens with me too. i think that happens when i finish my brakfat and without cleaning my hands start using the touch pad. what happens according to me is that small particles of food(eg bread/dust particles) stuck in the corners or the body wall where the touch pad ends and keeps pressing the touchpad, thus causing the mouse to move to one direction. when i clean the corners and sides of the touchpad, it starts working ok !!

thanks
Johal