Serial Bus Controller disappeared!

[j7qw]

HELP!

All of a sudden, my mouse stopped responding regularly. After a few minutes, it stopped responding completely. (I was using Windows XP). I tried to reboot many times; the mouse pointer would regularly appear on the screen and there i no error message at all; but the mouse does not work at all, not even the clicks don't. I opened the mouse and I cleaned it, and now I am sure it is not the fault of the mouse itself.
I doubted that there was a problem in the drivers, so I completely deleted the operating system and installed Windows ME. Same story! No I was sure that the problem is in the hardware.
I never had any such problem before, and the mouse worked perfectly both under Windows ME and Windows XP.

So the next time I rebooted I paid attention to the BIOS checks.

The Serial Bus Controller is reported as NA (not available, I guess). It is not a USB, just an old Serial Bus Controller (with my Pentium II).

I opened the computer to see if any card or connection was out of place, but everything seems to be in apple pie's order.

To recap: the mouse does not work at all (everything else does); the serial bus controller is reported by the BIOS as N/A.


Questions:
1) What can I do now?
2) Will I have to replace the Serial Bus Controller? Is it possible? How much is it?
3) Any suggestions?

[hw45]

Does the mouse work on another computer? Or try another mouse on your computer. When there is no success then you probably have to enable the Serial Port in your BIOS. Look for "Serial Port 1/2". Change from N/A or Disabled to Enabled or Auto or 3F8H/IRQ4.