I think to have already explained it: you have 2 separate issues:
- The image is not at sharp as it should be, this is controlled by the "Global Max Textures Size", which should be set to "Massive", it's controlled by the filter which should be "Trilinear", and it's controlled by the MipMap quality, which should be set at 6 or above. AND, outside FS9, it's also controlled by the Anisotropic filter at 16x.
- There's a conflict with another scenery, which makes a ground tile disappear. Sorry, but only you know what you installed so, we can't obviously give you an advice for a problem created by another scenery, which has just a single solution, because the solution it's different depending by *what* is creating the problem.
Your first step should be at least finding what other scenery is the problem, and this should be usually done by disabling areas in the Scenery Library, one by one, until you find the culprit.