vostro 1400 XP usb mouse doesn't work

Reinstalled OS.
Now Dell USB mouse doesn't work.
Downloaded optical mouse driver for this computer.  Still no help.
Have removed the PS/2 Compatible Mouse (which is what shows up in Device Manager every time) and let the mouse reinstall.
etc. etc.
There appear to be no BIOS settings that would help/matter.
There appear to be no keyboard actions that would help/matter.
I need to get it working.
The touchpad works.
There is no external keyboard connected.
LVL 27
Fred MarshallPrincipalAsked:
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Raymond PengSystems EngineerCommented:
This is happening for all usb ports?  Does the computer even recognize the mice when you plug it in as in a 'ding' sound.

you could try going into device manager > USB controllers > USB Root Hub > right click > properties > power management >  uncheck 'allow the computer to turn off this device to save power.'

are you plugged in  running off AC power from the wall?
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nobusCommented:
normally, you plug the mouse in in the 1st usb port
you can also try resetting the bios
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TymetwisterCommented:
Does the mouse work on a different computer? Alternately, have you tried using a different mouse on this computer?
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Fred MarshallPrincipalAuthor Commented:
It turned out the the USB ports weren't showing good installs in Device Manager.  Removing them all fixed it.
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