I have the tutorial for Camtasia Studio 8 and with no temp folder set up. It worked the previous day before this problem. I try to open MP4 files by right clicking, and saying Open With Camtasia Studio. But when I do that, all it does is make camtasia not respond. I'll open it, wait 3 seconds, then a window will pop up saying Camtasia has stopped working. It is the tutorial so i was wondering if thats a common bug or i need to reinstall. Thank you.