Try out a new keyboard it seems as if you spilled something in the one you are using and its putting out the wrong keys, if that still doesnt I'd suggest virus scanning and using a spyware program to remove spyware from your pc.
Try out a new keyboard it seems as if you spilled something in the one you are using and its putting out the wrong keys, if that still doesnt I'd suggest virus scanning and using a spyware program to remove spyware from your pc.