Keyboard and mouse freeze when I touch any keyboard key

[jmfunk87]

I have two different versions of Windows XP on my system. I am able to select which one I want with the enter key. But after Windows comes up with my family's usernames, the keyboard and mouse freeze whenever a key is touched. I am able to use the mouse, open documents and files, surf the web, etc., just can't type. I think I have contacted a virus, but AVG doesn't find anything. Anybody familiar with a virus that behaves this way?

[evilfantasy]

How long has this been happening?

Have you tried a System Restore?

[jmfunk87]

Been happening for about a week now. Did not try a system restore - I was not at home when it started so not sure exactly when.

[Carbon Dudeoxide]

What about another keyboard? (preferably a PS/2 keyboard - round plug)