RPGMAKER VX ACE : SHIFT BUTTON MAKES MY MOVEMENT KEY STICK

I have been having an issue for awhile now as when I am moving my character and hit the shift key he will continue to walk in the direction he was last going.
What I have done to try and Fix this:
- Make a new game with no scripts and events. No dice.
- Change it so Shift does nothing by hitting F1. Nadda.
- Restart PC. NO.
- Reinstall VXAce - No. (Even tried reinstalling the RTP)
Does anybody know what causes this and how to fix it. I'm Running Windows 7 64bit, and it ONLY happens when i hit shift while moving.

UPDATE : Happens on my laptop also.