Campaigns/Missions & Other SPOILER Questions.

[Fluke Kelso]

Hi, i've got a gaming problem:

It' the part of the campaign after the winning race against Murdock.
In the Main Campaign where i was called by an unknown Person by CB - Radio, the Voice said: Drive to Lebec,( Point is on map )
Arriving on this point, the Voice said: Drive into the TRUCK STOP near Palmdale.
Driving in this direction a Video show me Dorothy and Crane want to secure the next step.
And now my Problem:

The thierth Point show me to drive along the road to Palmdale,
on the point a black truck is parking there, but nothing happend.
I'd drived along the Road - nothing - i was waiting at the truck - nothing -

I don't know what i'd made wrong,

Please Help