Keyboard Problem

I was browsing the web when all of a sudden some letters typed on the keyboard started appearing with weird characters. I'm using the on-screen keyboard to type this. Some letters work properly while others appear with weird characters. The letter g, for example appears like this: [g
The letter p appears as this: pk
Letter o appears as: =o
As I said before, only some letters appear with other characters while others don't. Can this problem just mean that my keyboard is dying or is it a much bigger problem such as virus? Help would be appreciated.

>>1
Looks like you were using Internet Explorer. Why on Earth are you doing that? Never use that piece of shit if you value your system. You probably got a keylogger installed, which is failing for some reason. Don't type anything important.