I am pleased to announce that a solution is found. Blurry runway lights is not a problem of the Martin's scenery, not a problem of the videocard and simulator settings, this is just FS9 and probably FSX bug.
It is important to note that it is not my method, I just created bgl according method of the development. This method was advised by developer Sergey Grebenyuk aka greben. Feel free to contact with him if needed: grebens@mail.ru
Just copy bgl in to scenery folder. Tested in FS9, but should work in FSX as well.
