viewport display prob

[loginname]

I am having some trouble with the viewports, I have no trouble when viewport 1 is set to entire screen, but as soon as I choose one of the other options and move the cursor from one view to the other, the sketch dissapears and the views flash to white, back to normal, back to white. Dependant on where the cursor is.

 

Auto highlighting and hardware acceleration turned off does not solve this problem.. Any other info out there would be very apprectiated

Using mastercam4 and Windows 7

Thanks

[jeff]

What video card do you have? What driver version?

[loginname]

Quadro Fx 1800 card

259.12 version

[Guest]

Known bug, bug number received

 

You can disable Desktop Composition to get around it for now