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NSScreen isn't notified of resolution switch

I have found that after switching resolutions using the CoreGraphics framework I can't properly position a new NSWindow on the screen, but only if I have a Panel in my MainMenu.nib file. If I switch the resolution to 640x480 and create a new window using that size, it is actually positioned quite a bit off the right and bottom parts of the screen. It seems that when a Panel is present in the nib file (even if I don't use it anywhere), then NSScreen doesn't get notified of the resolution switch, since a call to the [[NSScreen mainScreen] frame] method still returns the previous screen size I had before the rez switch. However, if I remove the Panel from my nib file, everything works properly and NSScreen returns the proper screen size. Does anyone know what could be causing this problem?

-- Brian
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Brian Christensen <email@hidden>
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