When working with Inventor and Vault, if you open a file (without check-out) to view the file content in Inventor and want to use section views Inventor asks you if you want to check the file out (if in an assembly you hide a part the behaviour is the same).
If you say no (as at this stage you only want to view the file) the check-out prompt will not appear again for the file... even if you start to do a real change.
This is confusing for the users and the file check-out dialog has no sense if only the graphical representation is changed.
Something could/should be impprove in the way the graphical manipulation request the check-out.