Guys - thanks for all the input.

After messing around with it for a while i am getting it to work some of the time, but the IR flasher needs to be angled "just right" in frount of the IR eye on the 990 for it to work.

I am thinking of trying something else (a new MRF-250) because it is sort of unusable with the partial fix.

I will try messing with the codes again - I checked and the setting is set to "IR and RF". I will try a few different channels this weekend (the setting on the bottom of the MRF-250) to see if it an interference issue.

Again, thanks for all the feedback