Hmm, I'm stumped on this one. I have not seen or heard of this one before. Actually it seems kind of an odd place to crash because all you're doing is calling up information on the target when you click on it, (range etc) which you also do in the main nav map without consequence. (I assume)
Most crash issues I've seen with SC are 3D graphics related, or specific-mission related. My only suggestion is to maybe try a re-install and see what happens.
