Keyboard will not work in certain user accounts but is fine in others

I have a machine that has 3 user accounts on it.

The keyboard only works in one of the accounts

In the other accounts you hear a clicking noise but nothing comes up on the screen

I tried creating a new account but same problem

Its a regular PS\2 keyboard and yes I have tried changing it.

Any ideas?

 

C'mon people you're letting me down here, this is the second incident in a row that I've managed to figure out before anyone posted any kind of a reply. I know the answer is obvious to those that know it but when someone else is asking for help its nice to give some.

Anyway, problem was caused by some dumbass accessability option. There was a small icon on the taskbar (that I didnt spot until after I had resolved the problem) that looked like a small stopwatch. So if you se this and cant type, go to accessability options and make sure tha everything is unchecked.

My thanks to the Ubuntu user who had a similar problem, posted it on a Linux site, and especially to the people that answered hiscry for help. Reading this is what got me loking at the accessibility options in XP.

 

You Really made my day, I played Need for speed most wanted and stickey key annoyed me and i enabled the key filter that causes after next reboot keyboard stopped working in particular account. I disabled that and now everything is fine.

Again Thank You very much "hankyknot"