Vista Tutorial - Crazy Keyboard

Not sure if this is the right place for this posting but I have pretty much come to my wits end.
So a couple days ago my cursor started going nuts. It is most visible when I am writing. It just wants to scroll to the left all the time, which makes it impossible to type. I have reinstalled my touchpad driver several times, turned it off and used an external mouse and still have the problem.
There is also the issue when I use menus, it scrolls up and there is pretty much nothing I can do exit the application and then try again. It happens in every application on my computer so I am pretty sure it is the keyboard at this point.
I checked to make sure the drivers are up to date and they are. I am using an ACER 6920 with vista 32bit home premium.

Any help would be great. Thanks

do you have another computer around you that has a wireless keyboard or mouse that used a USB ?? if so then the signals my be getting crossed, change one of the computer to a corded mouse if that is the case.. if not the case then your computer has a hardware problem instead..good luck

Actually discovered that there was something funky with the left arrow key. Took a butter knife to it, took the key off, blew some compressed air over the sensor, hit it with my finger a few times and now everything is back to normal. But thanks for the help everyone.

Of course that was after doing about 5 different virus scans and about 25 hours of internet research.