Mac Mini / 23" Display / 10.5 - Screen resolution splits in half

Hey All,
I'm using a Mac Mini with a 23" aluminum display.
Recently installed Leopard on it, and now I'm having a really funny issue:
When I try and restore a window that has been minimized to the dock, the window does restore as its supposed to, and then for a split second, the display seems to swap the left and right side of my display. It almost looks like the image slides to the side 50%. So the pieces of my screen that were at the edges of the display, temporarily meet in the middle.
It then switches immediately back.
I think this might happen at other times too, but its 100% reproducible when restoring a minimized window.
Any thoughts?
Best,
Robert

I reported the same problem in another thread before.
I also have a G4 Mini, and I also have this exact same issue with a 3rd party (Dell 24") screen. It's not related to the screen or output (happens with the DVI and analog connection) but probably a memory issue with the video chip (out of memory maybe?)
It seems to happen only at the highest resolutions (I run 1920x1200, and have also seen it happen at 1920x1080). 1680x1050 and smaller works fine.
I hope it's a bug that can be fixed, since Tiger had no problems at all.

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