To be frank, it was a very frustrating issue, because none of us could come up with a repro, and the only thing that sometimes seemed to help is updating the graphic drivers. Having to update your graphic drivers to use NH Prof isn’t something that I consider appropriate. It reminded me of the time that to deploy a system that I built, we had to replace the organization domain controller. It is… not a place where you want to be.
We had accidently reproduced it in a SharedView session, and I got to see Christopher and Rob get to the root of the issue in a matter of minutes. It is not an area that I have any sort of expertise on, and it was fascinating to watch.
And, of course, we got rid of the problem that NH Prof had.