Since I purchased FSX in anticipation of enjoying flight simulation far beyond Fs9 (maxed out flys great on my system) I find that out of the box I have to "Tweak" change this and that to no avail.I have "sliders" that should stay in the extreme left position, check nothing and there you have it.Now all that really plays well on my system is the goofy music in the background.If I knew then what I know now FSXZ would still be on Gamestops shelf. I wonder what would happen if you add a developer's aircraft would the FPS go to minus ??Nick

Depends on the aircraft. I've added about 25 planes so far and most work fine, some have gauge issues and others have texture issues. I do find that some of the heavy VCs from FS9 are smoother in FSX, go figure.BTW you can turn off the music on the click box to the upper right in the opening screen. You can also change it to other music.You'll find there is a lot more programmed into FSX which isn't there in FS9, hence the lower performance compared to FS9.Regards, MichaelKDFW

Asus A8N32-SLI Deluxe nForce4 SLI-x16 / AMD