My SystemP4 2.53ghz512ramGF4 TI 4600 128mb (45.20's)Maxtor 74.3gbWindows XP HomePretty close to what u have.I have locked my FPS at 20.ANd get 20..with a dip now and again to 15 or so. I havent seen anything below 10fps..that was before i applied this fix.Chris Willis cloud fix..worked like a charm..Take a look at the forum topics the first one for FS2k4..follow all those tweaks.I also run Rivatuner and do all the driver settings through that.I fly online with ActiveSKy and Squawkbox...I have a FlightSim profile for XP..everything that XP uses is off except what i need to hook up to the internet, and run flightsim, Winamp.Tweak Tweak TweakThats the name of game.I saw power lines today!!!!!..Running along side Hwy 1 outside Calgary.!! Also short final Fairmont Springs BC rnwy 33..watch out for that bridge and those power lines!!..FS9 = Big Happy Guy Here

OK, one last thing, what areas in FS are you flying with these results?