How to switch off iMac screen and only use an external monitor
but I can't think straight at the moment
On my iMac the screen has a problem ( dead pixels ) and I will get it replaced in the future , in the mean time I have a very nice large external monitor connected to the iMac which I use ok, what I am looking for is a way at first when booting up , to be able to see both the iMac's screen and the external monitors screen , then some how shut off / make blank the iMacs screen only leaving the external monitor on ?
any advice or comments please
Thanks
2008 - 24inch iMac, Mac OS X (10.6.3), still Learning