I am running a desktop computer with windows 7 if I open a existing dwg or dxf in Draftsight there appears to be nothing on the screen. I have zoomed out and if I drag a box over the screen there are pinpoints showing so there must be something there but no lines, circles etc show. If I draw lines in white on a black screen they dont show either.

I have a laptop with Windows 7 and draftsight works ok on that

Any advice will be welcome