I searched the forums and did not find an answer to this problem. I have a user who has trouble with the print dialog box. The Preview, Setup and Browse buttons misteriously stop working. This happens no matter which plotter is selected. If she clicks on the OK button Revit appears to be plotting but in reality nothing happens. She has a recent video driver, (5/2011). She is the only one among seven other Revit users who has this problem. Funny thing is that this problem has occured in the past and it somehow fixed itself after a few days. Anyone else have this same problem? Thanks in advance.