flying car

Hi,

Quite often, I have an issue with my car starting to fly. The car
never gets back to earth and when I play multiplayers, I can only see
the other continue the race without me.
I play torcs 1.3.3 on fedora 18. The problem is not related to a
particular car or track.
Is there a key to get back to earth and continue the race?

Thanks,

Frédéric

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