I noticed some people using old missions with the new scenery by Uncle Tgt and saying they are having problems with them.Well those missions were made before the new scenery came,The missions are sometimes 10 years old or older.The runways are placed differently with new co-ordinates so of course there will be problems.The campaign and mission builders tell you in the readme what scenery they are using,Read it and use what they say.

Some missions have be converted to the new UT scenery and in the readme it tells you so.Just remember it takes time and a lot of work to do so.

Hiede