Hi Ruopeng and everybody,

This is probably something stupid but it's been frustrating me and I would appreciate some help. I downloaded Trackvis and DTK yesterday onto my new computer. It's a Mac Pro with OS 10.7 (Lion). Now every time I open DTK or TrackVis it asks me to validate my license. This is irritating but is not my main problem (unless it's related).

My main problem is that any time I want to save a track or scene in TrackVis the program crashes. You can understand that this is massively frustrating! Have you got any tips on how to avoid this bug? I've reinstalled already with no luck. Am I somehow installing it incorrectly

Many thanks,

Seán