I don't have so much memory (600 GB of 650 GB), so my Camtasia 9 goes sooooo slow. Today it don't works (I was editing some videos) and I don't wanted to close it: IT FREEZED THE WHOLE PC AND CTRL+ALT+CANC DOESN'T WORKS!!! Resolve this IMMEDIATELY.
It isn't the software, it's your crappy computer. But since you asked SO nicely, I'll tell you how to fix it. Take the frikken' battery out of the laptop, and after a short wait, 5-10 minutes should do it, an hour wouldn't hurt. put the battery back in and reboot.