The question is are you running two or more devices on your parallel (printer) port? Scanner drivers can be particularly problematic.
The kb symtoms could apply to any bidirectional scanner / printer combination.
Since you're running '95 you should have a look in the control panel (start settings control-panel system) and flip to the second page (devices). Do you have any red exclaimation marks there? If so post back what they refer too.
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The basic tool for the manipulation of reality is the manipulation of words. If you can control the meaning of words, you can control the people who must use the words.