Had a real problem start on me last night on line. Brabhams round Monza 10km. After a lap, my fps would drop by a half and just stay there. Tried turning replays off, installing different gpu drivers, fresh install. Nothing helped. And it works fine offline. I would add that I have run this car and track on line before, for hours. No problem. This issue just started out of nowhere. I'm baffled and really annoyed because I've been having such a good time with this beta. Any ideas?