Black screen in every tds 750 aircraft

[state48flyer]

I have run the install based off instructions, i have tried for the past month since purchase to get it to work and never have been able to get anything more than a black screen. I had the pms previously, worked great. I confirmed it was completely removed from my computer before running tds. I'm lost as to what to do anymore. i dont even know where to begin to diagnose the issues so if anyone has some ideas ill gladly take them.