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#11
I'll give you my opinion on that, Yes I would uninstall that software and just use Media Center for your TV needs, you don't really need two apps to do the basically the same thing.
As for the STB, on mine I had to start the MC set up using the STB remote and then when prompted finish with the one I mentioned above.
Also like mentioned earlier I don't have your same card so these are just my opinions and what worked for me.
If you still have questions or want to know more, don't hesitate to ask there's always someone here to help.