So there is a knows issue when installing Revit 2014 on computers that already have Revit 2013 and 2012 installed, apparently the earlier versions (2013-2012) have ribbon graphics issues....
experience graphics issues with Revit 2014...problems with graphics, filled regions and then the ribbon started acting up and disappearing....
We were getting issues like this:
SOLUTION: download and install the .net framework 4.5.
The graphics issues seem to have been resolved now.....
I'll report back with my findings.....
enjoy