Servo issue, help please!

[Drvnbeing]

Alright so I am running a Losi comp crawler with a hitec 5995 up front and a losi mini servo for the dig. I have a DX3R tx. The problem is that for whatever reason I can not set my tx to 5ms like it says is needed for digital servo's and I think I am having some glitching issues because of it. I was running a spektrum sr3000 rx for a while and I was able to have it set at 5 ms but when I switched to the sr3200 for whatever reason it will not allow me to use the 5ms setting. Besides the glitching the major issue is the dig servo does not work when set to 5ms, main servo works fine. SO any suggestions would be great, thanks!