i just downloaded Revit Architecture from the Autodesk site but it wont install on my machine. After i enter my product key and serial number, the installations initiates for a few seconds then i receive a message saying "installation complete. some components were not installed" (these components being Autodesk Revit Architecture 2012 and Autodesk Design Review 2012" Anybody know what the problem could be? coz av tried this installation on two other PCs. please help.