Since a while I have a very annoying sound problem at some tracks. From the very beginning of a session, I get an infinite loud noise sounding like many wheelguns repeating in a loop. About the wheelguns I could be wrong, but sounds like that. It comes from the pits, noticeable nearly all over the track. It happens for example at Suzuka, Interlagos but also addon tracks like Virtua_LM's Le Mans. It doesn't appear at Longford. Something wrong with ambient sound files? I had no time to explore the problem further more and I can't really remember when it started first, because I don't Play often, so in the first place I thought it's one small issue with an addon track. But it's getting really annoying now. Any suggestions? Please help!