I think he meant that the people using the computer should have alt tabbed instead of trying to minimize the application. (alt-tab switches between running application on windows systems (and some others
)
Good to hear it worked well for you though. Once you start shooting tethered in a studio i find it very hard to go back to "just" the ol 3" screen (i have a 40D and 450D) . And the fact that the client / makeup & hair / stylist etc can view it directly is SUCH a boon.
/Henrik