Thanks for the replies.
I had checked video driver and have latest Catalyst drivers.
I am connected via hdmi to Onyko reciever and then to Sony projector.
What is odd is I never had this issue before the automatic update to this latest version. Also odd, when I reboot my PC, it loads directly into Mc18 (via batch command in startup). During this intial load, Theater View loads fine. If I close MC18 and then reload (either through my batch file or MC18 shortcut), then the screen is black with MC18 backgound and menus partially displayed in tiny box in top left corner.
Maybe this is a clue to what could be happening - when I load MC18 and get incorrect view, I intially see the following text:
"Press left, right, up, down to navigate and OK to accept. Press the green button to go home".
Not sure if these are MC18 messages or not. They obviously have something to do with remote. I do not have any remote software running.
Thanks