Graphics in win 2k I

I just installed fs2002 on my win2k pc. Before that I was usiung it on win XP, but the performance left too much to be desired. So, after installing win2k and fs2k2, the fps went all the way up. However, the graphics are really lame. Mainly, the body of the aircraft and the airports. I have tried everything (new driver, new direct X, etc.) to no avail. Any idea what the prob is? Also, I tried using win98, the graphics were reallygood, but performance was lame. On win XP, graphics are ok, but performance sucks. Any ideas?????