I downloaded two free program and I am certain that they have helped my running of FSX greatly. Not sure about frame rates per se but it just runs smoother. I have an HP Pavilion with Media center Edition, Radeon x300/x550 series 128mb card, 1gb of ddr ram, P4 2.6ghz and I am set at the following: Graphics -high,aircraft-high,scenery-ultra high,weather-high, and traffic-high. I am getting 9-12fps at these settings.The programs are called:SmartDefrag and Advanced Windows Care v2 Personal and you can get them at http://www.iobit.com. I also want to credit Geoffa because he is the one that I first heard it from.SmartDefrag is a utility that keeps your HD defragged "on the fly" and Windows care v2 is a "PC-Care Utilty" found lots of garbage on my system!Hope this helps and lest anyone wants to flame me I do not work for these people just appreciate a great product that is useful and free.Happy Flying, Danny

No flames here, just want to expand on your good post and suggest some more good packages, not all are free though, but worth it all the same.O&O Defrag also has that capability, and doesn't impact the machines overall performance while doing it's loyal duty.Another decent tool is Registry Mechanic. 'Windows Rot' is basically the registry being bloated with unused entries, entries that go nowhere, and entries forced by spyware etc. It's always a good thing to run something to really clean that sucker out from time to time.SpyBotSD. I think it rocks, along with AdAware, they do an awsome job on keeping my systems clean. Check em out.Kev

Thanks Kev for the kind words and the additional information.Danny