Delete confirmation when deleting dynamic search folders I believe should be default.
We have changed it to have the No button focused by default. The v4.5.5.0 RTM will have this change included.
Also if you hit the 'delete' key during a wizard (for example the VNC Deployment wizard), even though the focus is on the wizard window, the selected dynamic search folder will be deleted instead!
Are you sure that the Wizard window has the input focus. The Deployment Wizard is displayed as a non modal window, which mean that even when the Wizard window is opened you can still have the main VNC Manager window with the input focus beneath it.