Prior to installing the GDL 39 I was receiving traffic on my 796 thru my GTX 330, which has the ES upgrade. I recently installed the GDL 39, hard wiring it to power. It connects thru Bluetooth to my 796. Flew today for the first time w/the new system. I get the ADS-B traffic fine but am not getting TIS traffic. I did not change anything on the GTX 330. Do I need to revise some settings info? or look elsewhere for the problem? Thanks...