Are you at least getting asked for authentication? Or are you being denied access altogether?
Damn!, I love this place! A guy can wander in here dumber than a stump, but pay attention and learn stuff from the helpful people here.
I was supplying what I thought was authentication, but after your question, I deleted the saved credentials and tried to log on. When it asked me for the password, I supplied it, and was immediately logged on to the Pro.
Wonders never cease!
By the way, I have abandoned the once troublesome Win7-1, and am now running Win8 as primary on my "main machine." I can RDP into it with no trouble at all.
Thank you very much!