I think i've got a memory leak (or something similar) in some exports, i got rFactor conversions back (for AIW editing..) and while loading the track in AIW/CAM editor i was checking memory sizes, it suddenly went from the usual ~300megs to 1.2gigs and Runtime errored. But the strange thing was, i just started rFactor again and the same track loaded fine. Then it opened well with AIW/CAM editor too, i guess the problem is HAT rebuilding there too... So there is something that causes occasional bugs.. I need someone to check the track with 3dsimed, just to check if there is something funny out there that won't show itself in BTB.