Gradual slowdown/ USA Roads/ Texture issue solved

Was on 98SE.Now on XP Pro.Before, I experienced gradual slowdown first noticeable by textures failing to load quickly, then loading slowly, then not at all.... also, menu performance and general FS response just dropped away until it took almost 3 minutes to quit.Time to "failure" was usually within 20 minutes.All is good, and I'm pretty happy with the performance - PIII 500 upgraded to a 1.2 celeron, 384 ram, Diamond VIper 770D Ultra 32, Windows XP Pro. I'm thinking about adding 256 more ram.Setup varies from default - 1 hardware lighting, 5 mip map, no autogen, simple clouds, but high res textures. 1024x768.USA Roads loaded.Was running FSAutostart in 98SE but I haven't loaded it yet in XP.Frames locked at 16, I usually get around that in areas like New Jersey near Philadelphia, and I haven't tried this out in a "heavier" area yet.Fired up the Lear, took off from KVAY (South Jersey Regional) toward Atlantic City, then south toward Baltimore at 18000. Before getting into the DC area, I swung it around back north toward KPNE, Northeast Philadelphia.Textures are generally sharp with "dottiness" of USA roads starting at about 10 miles out from aircraft.So let's just say that if you're running a 2.8 ghz -whatever- and you're having framerate or graphics issues, maybe it's time to reformat...Happily Camping,Andrew