if that ain't working properly try the race without using the trainer.
Yeah i have the same problem. i have tried to look around on the web for an answer to no avail.
i tried to start a new account but it seems to do the same thing. still cannot win against him even though i am miles ahead. so i will post this question to the other fantastic guys here who have done this race:
When you overtake Kurt Dierker, does the yellow arrow disappear or does it stay above him? it seems that this could be the problem. Does this happen with you too mvanlone? when i overtake him it just seems to stay above him.
Any help with this would be much appreciated