Thanks for helping Thomas, no the problem is with ScenProc I had the tree filters off roads switched off so I now have to re make the cultivation which seems to take forever.
Cheers Michael.
PS.
I have given up on the idea of removing a few trees off the M 4 Motorway as including the tree filters into ScenProc seems to take forever, several hours and still processing. Now I can get going with Central England Part 5.