yes it is an OS (Windows 7) in german on the user laptops. The release from server is 10.0. I know this is outdated but a migration to QV 11 is planned. Our IT meant that nothing has changed with the roll-out images for the user, but I didn't believe it.
The first time with this problem was about two weeks ago. I assume that any small config with the processing from character set or in the security settings is wrong, but which one?