With the help of another forum I have found that switching off DX10 preview
allows the yellow arrows to spring into life. Many thanks for your help.
guys.

"Chris Hall" wrote in message
...
I have installed FSX on a new Vista computer. After the IFR clearance is
received, I press the appropriate button for Progressive Taxi (usually 3),
but I don't get the pink track I was used to in FS9. I don't get anything
despite switching the progressive taxi on and off a number of times.

Any ideas, guys?