Thanks, however the verison refered to is for Windows. I am on a MAC, and dont know how to roll back versions of Quicktime.
Could you help out with how to do that, and hopefully that will solve the issue.
Downloaded and installed Quicktime player 7.7.1 and the issue has gone away... I cant say that i understand why, but i am very happy to be free of this issue (at least for the short term!)
I'm having exactly the same problem. Was that the final resolution — to download and install Quicktime player 7.7.1?