Thanks to the new Apple drivers I finally have Vista set up how I want it under Bootcamp on my iMac apart from one irritating problem. I use a Dell monitor attached to my iMac, and I want the system set so the Dell is my primary monitor, and the iMac is my secondary display. I can see how to do it by going into Control Panel/Personalisation/Display Settings but the option 'This is My Main Monitor' is greyed out and it doesn't allow me to change it. I'm 95% sure when I first installed Vista it did allow me to change this. Any suggestions please?