I recently purchased the 5.8ghz video tx from immersion. Everything is hooked up correctly, from what I can tell. I get pretty good video when powered on but as soon as I turn on my FC40 remote it causes distortion on my video screen. Any suggestions here?

You're using TWO 5.8ghz remotes?
You cant do that.
The FC40 uses 5.8ghz, then your immersion uses 5.8ghz.  You have a conflict of interst going on.