I've been racing online a lot lately and I hear of this happening to people all the time. It appears to happen more on some tracks than others. Happened loads when I was racing Hockenheim. I've no idea why it does it or how to stop it but is a real pain. Doing 20mph/50kph threw the pits while everyone else is doing 60mph/100kph is quite a disadvantage. I am on the ps3