intermittent Rudder problems

[infidel]

flying along fine and all of a sudden the aircraft pulls left. Go to F2 view and my rudder is all the way left without any input from me. Just started doing this. It then returns to normal (it responds to my pedals) then 2 minutes down the road I make a quick left again. I have CH Fighter stick, throttle and pro pedals and use Ch Mananger to create one controller. This has not been an issue before. I've seen previoues posts where you don't have to use CH Manager but have tried not use it with awful result. Haven't changed anything. Am I mssing something?