Drafsight Mouse Cursor Jump

I have an HP Z book Laptop with NVIDIA Quadro Cad graphics card. SolidWorks etc all work perfectly but when I open Drafsight to view dwg or dxf files the mouse cursor is very jerky when moving across the screen. Its almost like you have snap turned on but worse. There is obviously a graphics issue or conflict.

Has anyone else had this problem and if so would you know how to fix.

Thanks

Peter