My problem isn't unheard of... I've seen mentions of it, but never found an answer to solve the problem.
My computer crashes when I use Jump Gates in Freelancer. I can enter a jump hole just fine most of the time. Jump Gates restart my computer about 95% of the time. I've noticed that it's 100% if I have a Nav Point mapped through the jump gate.
I'm using WinXP. P4 1.2Ghz. 2gig of RAM. nVidia 6800XT/256mb. I've updated my g.card drivers and have the most up-to-date DirectX version.