I am using v 8.5.2 and all was fine, until just now. I had a pc crash at 22m recording. So then I thought I would make smaller videos, but the second time it crashed at only about 6 minutes. Windows 7 Professional, decent i7 with 32gb ram. I am just recording from pc screen. How do I stop this happening? I am using Camtasia as I learnt that free software using avi had a very small file size. And I have made some big recordings today with Camtasia perfectly ok. So what changed?