Hi, I am not totally new to xplane but have not used it in well over a year and when I used it initially it was not for very long. I am using v9 latest.The panning in VC was very choppy. I thought maybe it had to do with the rendering options being to high. I lowered to very low but still panning was not smooth at all.Any input would be much appreciated!Win7 QX9650 - GTX 285 1meg - 4 gig memory - OC @3.85Thanks muchBob

Is it with all add ons or just a few? Also, check your windows processes using the Ctrl Alt Del key combo. Check you only have 1 instance of x plane running. Sometimes x plane remains running in the background even if you can't see it. If that is the case, it will run very slow and give you choppy performance.