when i use fs2002 the scenery textures come out all grainy so if i want to use fs2002 i have to use the full screen mode is there a way i can get the textures back to normal and not have to use it in full screen mode?

Agree totally with Hagar (not often that we disagree much over anything important  )

Presumably you are using a 3d accelerated graphics card, Rich?

Check that you have the right and latest drivers for your card and you have the correct hardware settings. Tell us what your settings are if you want.

Full screen is the best way to run FS2002 - when your card's set up right everything inc planes and scenery is much more impressive.