I have a problem with CsA and Print screen, If the workstation is in test mode print screen, alt print screen works fine. However when the same machine is in enforcement mode the user is unable to use this function. Even worse there are no logs generated. Has anyone seen this behaviour before and more to the point whats the cause.
Do you have a "Clipboard Access Control" Rule applied to the Users ?
If you have (whether its Allowing Or Denying the application) the Print-Screen functionality will be disabled.
See below for reference
NOTE: If you are using the Clipboard rule to restrict applications from accessing data on the clipboard, the system Print Screen functionality is also automatically disabled.