My cursor causing wow to lower fps from 150 fps to 1-5

Earlier today when i was playing, I suddenly got a major FPS drop. When I now try to move the cursor in game it will lower the fps to around 1-5 fps, in other words totally unplayable. If its any help it seem to be the same in other games that i tried since it happened. Also my fps wont be lowered almost anything if i move the camera with the arrows on the keyboard.

Specs for my laptop:
W7 home premium 64 bit
AMD Phenom(tm II N830 Triple-Core Processor 2.1 GHz
RAM : 4GB
ATI Radeon HD 5650

Please help me...

 
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