WIndows Vista- Keyboard Question

Hey, Guys

My keyboard sometimes goes a little wacky. What I mean is that the buttons get randomized. Like, when I press "A" it's a "2" or a "Y", like random characters on my keyboard. When this happens, I restart my computer because that's all I can think of to fix the problem. Do you guys know another way of fixing it, besides restarting?

Thanks

P.S I'll explain in more detail if needed*

Sounds like you spilled something on it possibly? Have you tried other keyboards to try and isolate the issue?