G4 PB lost primary display with Sharp PG-B10S projector on extended mode

About a week ago, for no apparent reason, when I plug into my projector in dual screen mode (through the DVI VGA adaptor), my primary screen switches to the projector and the secondary (extended) screen pops up on the internal pb lcd display.
Whatever signal is being sent to the projector in that moment is registered as "not reg." (not regular? not registering?) by the projector. When I switch back to "mirroring", it recognizes the projector, and pops the mirrored display image up onto the wall in short order. When I drop into no mirroring again, it goes back to the same problem.
You might think I could just arrange the screens on the arrangement tab in display prefences. Well, as the primary screen (in extended mode) is the default screen where the display prefences (complete with "arrangement" tab) pops up, and as it is at that moment "not reg." on the projector, I have NO WAY of accessing that dialog box (yes, I even tried some "lucky grabs" to see what I might "fish" off the invisible primary desktop. I nabbed several icons and brought them "home" to my internal display, but no luck on grabbing the display preferences dialog box header.
When I am in "mirror on" mode, the arrangement tab, as you already know, does not give you the option to change.
Tried a second monitor coming off the vga out from the projector, and it also gives me a not reg. when in extended mode.
Tried S-Video out to projector, and it keeps PB internal display as primary display. Tried second monitor direct DVI and through the DVI VGA adaptor, and it also works fine. After getting it working fine on the external monitor, I can then "switch in" the projector and it works properly, convinced the projector is the second monitor. Reboot or close the lid, however, and the computer seems to say, "Oh, you again, eh?" and then goes into conflict.
Are there any keyboard shortcuts or drop down menu options for making the change in some other way than the gui way?

In https://bbs.archlinux.org/viewtopic.php?id=130309 the first link is to https://wiki.archlinux.org/index.php/Forum_Etiquette where you can read about
https://wiki.archlinux.org/index.php/Fo … s_and_Code
No big deal.
Have you tried using just vesa to see if you can start X this way?

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