mouse not detected

I've just upgraded a pentium 1 for a friend.  I've loaded windows 98 but I keep getting a "mouse not detected" message.  I've gone into cmos and the port settings are set to auto. I've also mananged to get into control panel in windows and I don't seem to have any com port conflicts showing.  Can someone please help me.
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Try a different mouse. And/or make sure it is plugged in to the port snuggly.

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what sorta mouse is it ?.......serial ?.  ps2 ?
betcha it's serial and if so go start in safe mode remove all com ports then restart the system should then 'find' the mouse
Did you plug the serial ports into the motherboard?
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Glen A.IT Project ManagerCommented:
also check that where the serial ports attach to the motherboard that it's not connected backwards . . .

easiest fix might be to install a ps/2 mouse
the mouse you have is probably of an older version , try to buy a new plug 'n' play mouse , when you will attach that mouse , it ewill be automaticlly detected
putermonkeyAuthor Commented:
This is a serial mouse and I don't have another but I tried it on this computer and it works fine.
putermonkeyAuthor Commented:
Ok....I made a boo boo. I submitted to answer rather than comment. Sorry folks I'm new to this.  Thanks for all the responses.
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