Hi all. Installed CRJ, everythings seems to be in the right place, but when the Avionics are on, the stuttering makes it impossible to fly, slows down to a crawl... but naturally when I turn off the CRJ-avionics plugin, she flys beautifully. Tried all the recommended ways to fix, removed all plugins, brought settings way down, downloaded the Demo, but even with the Demo I have the same problem, have latest video driver, latest XP update, removed all C++ versions and re-installed with only the latest.... removed the x737, also Hagers Airbus A346 and A380VC to see if those plugins caused it. Don't have a super computer, but here are my specs Intel pentium 4 2.80 ghz, 1gb ram,NVIDIA geForce 9400Gt, windows (yes, sorry) XP any thoughts? please and thank you very much.