[Falcon]

I'm having an unexpected issue in Sony Vegas 7.0 AND 9.0. Whenever I hold the Ctrl key and move the mouse (trying to change the speed of a clip, etc.), the mouse cursor jumps to the top left corner of the screen, no matter which way I move the mouse. It does not happen in any other applications. I've already tried reinstalling BOTH of them, same problem. I've even went as far as to test two mouses, a optical and a ball mouse - same thing.

Can anyone tell me what's going on and how to disable it? I can no longer edit the speed of my clips, something I need for a project I'm doing.