I have the same problem. I only bought the software today and within an hour created the problem outlined in this topic. I am using Opera 11.10.
No matter if i clear the cache of Opera or Flash, it doesn't solve the problem. Solution? Logout of admin! As again outlined above, the problem only occurs when logged into admin. I don't think it has anything to do with the cache.
Question to the person above who said after clearing cache it fixed the problem was that because you wasn't logged in? Is it still okay even when you login.
The bug isn't too much of a problem, the software is great, glad I purchased. I just thought I would confirm what the others are experiencing.
If you would like some screenshots or some tests carried out then by all means ask.
Nic.