Changes res; clock/username panel no longer aligned to the right?

[itzfritz]

After changing my screen resolution and adding a second monitor with a different resolution (amd binary driver, non-xinerama dual-head), the clock and username/shutdown panel items are no longer aligned with the right edge of the main screen like they were, in the panel at the top of the screen. Now they are a few inches to the left of where they were, and it is annoying.
Now that I think about it, they are positioned about where they would be if the main screen had the same resolution as the secondary screen.

I have tried 'unlocking' them from the panel, but i just cannot drag them anywhere.

How might I move these panel applets? I have just moved 100% to ubuntu (from windows), and this is annoying me.

(screenie attached - note the clock position)

Thanks!

http://i34.tinypic.com/35n526w.png