Further investigation into what’s happening with 2 monitors. I’m running a MacBook with an extended display, using DVI out to drive a digital external monitor. The MacBook graphics card is the Intel 945GM chipset.
Playing a DVD using WinDVD, I can watch the film either windowed or full screen on either the laptop or the external monitor. Playing a DVD using MC12.87, I can only see the image on the laptop monitor.
If I unplug the external monitor, set the display back to single screen, start a DVD in MC, then plug in the external monitor, then reconfigure the display settings for extended desktop, then I can drag the playing now window over to the external monitor and see the movie.
I had thought this was a driver issue, until everything worked out OK in WinDVD.