Hi Bsmyth
It sounds as if you already have photographic scenery and probably not Horizon’s.
If that’s the case, I imagine your supplier has a forum which contains information about the flattens you need to get rid of the escarpments.
Additionally, UK2000 have just issued a whole wad of airports in the south of England (72 I think) which are being supplied direct or through Horizon. It’s compatible with the Horizon scenery but I’m not sure if it can be used with FSX only or indeed with alternative photographic scenery suppliers.
You can get onto Both Horizon and UK2000 scenery by tapping in their names in your Google search.
Let me know how you get on.
John