All my aircraft perform well exept for dino cattaneo's F14 which is very jerky is there a remedy or do I need to delete it, I have tried several f14 models of his and they all do the same, thanks
Nope, the Tomcat was made with the SP2 SDK, and more specifically for Acceleration. If you have only SP1, it most-likely won't work properly. The HUD and MFD will not work at all, and you might get problems with some animations and the textures.