Hello, What is the best OS for FSX??????I currently have Windows XP HE SP3 32bit and it runs great, frames slider to unlimited, 45-55fps with no stutters, but when I tried Windows 7 HP 32bit, The frames are around 60fps but often dip to 30, hence; STUTTERING!!! I would much rather prefer Windows 7 because it is the newest, but these stutters are really annoying. I CANT lock frame rates because in complex aircraft like PMDG MD-11 they will go down to 8fps, but when i set it to unlimited it hangs around 50 with occasional dips to 30. How can i fix this?? I already tried disabling Aero Theme, and setting Windows for maximal performance, but that doesnt help....... Will installing SP1 for Windows 7 help???? I really want this to work, im a little sick of XP. Thanks, and specs are in signature below....... BKa.k.a. Wybe Witteveen