Grabber Tool Stuck On- Can't Get Work Done

For some weird reason my “Grabber” tool is constantly getting stuck on. I click to the other tools on the side bar and in the drop down menu but it stays on the grabber. This prevents me from being able to drag the camera around or get anything done.

Any suggestions on how to fix this?

The only thing I can think of is that your spacebar is getting stuck since the spacebar is the shortcut for the grabber tool override.

I have a similar issue yesterday i gave up, i dont belive the spacebar to be at fault. I tried again this morning and its now all ok but definately i suspect the software has a bug. I am using win 7 64 bit all updates done, twin 24 " monitors, focusrite firewire sound module. 8mb DDR 2 on an asus p5q.