i'll bet you had a bigger screen before and the 3D palette has been saved with your work environment way off the edge of the powerbook screen. and if you're using the powerbook out of the box it's probably already on the highest resolution it can go.
so i think you're in for reloading one of the standard 'palette' schemes and resaving it once you've sorted out their positions . . . that is unless you still have your old machine around and are able to resave your WE profile on that . . . ?
remember that you don't have to lose your entire profile - just the 'palettes' scheme.
HTH
~/archiben
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