Today we're seeing the attached error message while using Principal Administrator.
Advice on why this is happening / how to troubleshoot and fix?
Notes:
1. Repeatable for given user on given client accessing production.
2. Does not occur for same user on same client accessing a test Windchill server.
3. Clearing both IE and Java caches has no effect.
4. No known recent changes to IE or Windows.
Had this problem last week and it took a bunch of time to figure it out.
the following is from the java site.
To clear the Java Plug-in cache: