Hyper-V Hangs Loading setting data

I am having an identical problem others are reporting where Hyper-V hangs after installing the RemoteFX role with RTM SP1.  The server specs are as follows:

WIN 2008 ENT R2 w/RTM SP1, DELL T710 w/2 Intel Xeon X5550 2.66GHz CPU's, 24GB RAM, nVidia FX 3800 with W2008 R2 x64 Driver installed.

The VM properties will not load regardless of what I try & I therefore cannot add the RemoteFX role which is the primary purpose of this exercise.  Any help would be greatly appreciated!