I have installed TeamViewer on a remote server and using it as a service. I have configured a local admin to run that service. When I try to connect to the TV session it wont start the screen, not black screen as many have reported, just starting but nothing happens. If I start a RDP to that server the TV session is activated. As soon as I minimize or close the RDP session, the TV session freezes. Any suggestion would be appriciated.
Did you try running the service under the local system account? This is how TeamViewer installs itself ... perhaps it's needed, as the system account has even more rights than an administrator.
As an administrator you can get access to everything but for many things you have to configure rights to get access.