I think I've tracked down what's causing the crashes. For instance, when
I GOTOed K-79 in the 18SCO system, Celestia would crash before it
got all the way to the K-79 moon. So I went in and # out the reference
mesh - a .cms file, and guess what - no more crashes. In fact, I # out 2
other .cms references, and I was able to go to those moons without
crashing.
I know Chris mentioned that .cms files would be phased out. Just
letting everyone know that I suspect those files are what's causing
the crashes.
Vic