I’m having the exact same problems with my project. I was almost halfway done editing my project without any problems and then all of a sudden whenever I click on or try to play my timeline it will play for a few seconds and then freeze and then the spinning ball will appear and I will be forced to Force Quit. I do not want to just abandon this project, and this is a brand new hardrive with only this project on it. The Western Digital 320 GB “My Book”. Can anyone offer any help?