On Fri, 13 Jan 2012 23:48:38 +0100 Louis Lagendijk wrote: > I quite recently had something that looked quite similar on my iMac g5 > when I had a cable plugged in to the VGA port. he system apparently > overlaid the VGA screen over the screen on the built in LCD. Does the OP > have a second monitor attached to he system? This just has a single monitor on it (and just one port to hook a monitor up to). I wonder, though, if there's something under the video setup that's referencing a second (non-existent) monitor. I'll see what System-Preferences-Display has to say for itself when I'm back at that office. -- MELVILLE THEATRE ~ Real D 3D Digital Cinema ~ www.melvilletheatre.com www.creekfm.com - FIFTY THOUSAND WATTS of POW WOW POWER!