Has anyone experience an error message like "An Apple Monitor Plugins error occurred. The calibration data for thismonitor is incorrect. Please contact Apple Customer Service for assistance." I upgraded to OS 9.1 two weeks ago and everything was fine. Now I am getting this message and only one, default resolution is available. When I switch the Apple Monitors Plug-in extension to version 1.8.1 (for OS 9.0.4), I get all the resolutions (and the one I programmed), but I still get that strange message. When I switch back to the 2.0.4 version of the extension (for OS 9.1), only the default resolution is available (don't have any other resolutions to pick from). Thanks for any advice.