There are two known problems I am working on.
1. On some windows XP SP2 machines, FMS would crash if SmartPropo is used. I'd recommend to stay on SP1 until the problem is solved. Frankly, I don't have a clue. For you SW guys: The problem is - SmartPropo DLL fails to LoadLibrary the original WINMM.DLL with error 998. Any ideas?
2. Low-end PPM Tx connected to mic input cannot be used. Problem is understood. If you have a Line-in input to your audio card - use it instead. If not, just wait a few days.