I have a couple users who have reported soem odd behavior in Revit Structure 2009 and 2010. On occasion, they will be working on a project file, when out of the blue the background turns black! The only way to correct it seems to be to close the project file, close Revit and then restopen Revit and the file. There seems nothing consistent preceding this event. One user has only reported it when working remotelt, via GoToMyPC.
These are now Dell machines, Optiplex 755 and Precision 490 with very powerful video cards. Any ideas what's going on here?