I know this was discussed in the midst of some other threads, but I had a hell of a time finding it.
When I first installed JD's (kickass) Rom, my end key wouldn't work to end calls. Sadly I discovered this while getting off the phone with my girlfriend... tip: never mutter "pain in the ***" unless you're SURE that the call is disconnected.
So anyway as I prepare to sleep on the couch I'm letting you all know that installing the 3 cab files in this Zip will restore functionality of your End key as well as add a few other Sprint customizations (#777 for connection, speed dial).