Hi guys

I've had this quite a couple of times and it's starting to get frustrating. Sometimes during a session, but often when the race starts, all the other guys' cars become invisible and remain where they were on the track if you select them or + and - to view other drivers. Someone tonight (forgot name now) told me to 'pit in' while we were standing on the grid.
Is this a known quick fix and how exactly do I 'pit in'? I didn't want to bug him while he's flying around Le Mans.
BTW, when this happens, there is still a connection as I can chat to people.

Thanks guys.