We have a strange issue. It is not really reproducable; but occurs too often.

We use a not too small properties dialog for our templates (see attachment). Sometime this dialog (or the FCK editors) does not load completely. Just stops loading - no error. If the user click save the not initialized FCK editors write empty values. Means already managed content disappears.

Have you ever heard about this issue? Is it a browser or configuration problem? We mainly use Firefox 3.6 running on Windows XP. Should we use a different browser or what else can we do to solve the problem?

Please let me know how we can get any support. Thanks!