Quicktime movies crash Lectora

Hello All,This one has had me climbing the walls for several weeks. I'm wondering if anyone has run into this:Every time I import a Quicktime movie Lectora crashes ("Lectora Professional... has encountered a problem and needs to close.., etc.). However, importing other formats such as WMV and AVI create no problems whatsoever. This only occurs on my newest system, a 2-month old Intel Quadcore, 2.4 GHz, 4GB RAM, NVIDIA 8800 GTS video card. Importing the same video into Lectora Professional on my old Pentium 4 works fine.Here are the things I've tried so far:1) Installed the latest Quicktime version (7.3).2) Downloaded the latest driver (11/7/07) for the video card (NVIDIA 8800 GTS).3) Rendered the video using various QT codecs (H263, Sorensen, Cinepak...)The obvious solution would be to convert the video clips to WMV. However, this is not an option as the video is being delivered by the client and must remain as .MOV files so the client can make changes after delivery. Likewise, working on my older system for this project (over 40 videos in all) would be considerably slower, so I'd like to avoid that.If anyone has run into this, or if anyone at Trivantis has any advice I'd very much appreciate it. Thanks in advance!Ted LeibTustin, CA