Well, after some tries it works fine in window view. full screen alsways makes the computer freeze with a black screen...
About speed, I kept frameskip at 0 (else games runs slower) but I had to increase cycles up to 6000 intead of 3000. This way, game is almost as good as pure DOS racing.
Problem remains with screen size : my view is 1024x768, so a 640x480 window is small.
Next time I'll try to first resize my computer to 640x480, and then run DOSBox. this way, the windo of DOSBox would look like full screen. :-D
Anyway, I'm leading again the noRH competition (replay and zipped video sent to Mark).
Sorry SuperBrian : normally I never overtake a teammate while he is leading, but you overtook me when I was leading so I have no guilt doing it too.