Just recently had problems with wireframe in X7. If I select either wirframe or simple wireframe from the view menu all will appear as normal. The moment I move the mouse/cursor onto the workspace, the hole workspace turns black. I tried an F8 reset which appeared to cure the problem, but its' back again. Also tried a repair but no joy.  Just wondering if anyone else has had this problem.  This also happened after a windows update in August which resulted in me having to completely remove Corel and Quickbooks as neither would load after the update, Both worked after a complete registry clear out before reinstalling until the wire frame problem started.