GTNxi PC Trainer won't install.

[audioman@peak.org]

I get the message "Could not find GTNxi PC Trainer. It looks like it is not installed, please reinstall from the TDS GPS Manager or contact support" like you really can contact support directly. I have followed the directions and reinstalled several times. I keep getting the same message. What's the best way to uninstall before reinstalling? Thanks, I'd like for this to work. The Pro upgrade is installed but Flight Simulator is not running.