radeon MergedFB and vertical monitor offsets

[Keith Lea]

Hi, I'm using the radeon MergedFB mode to use dual monitors on my IBM 
T30 laptop with Radeon 7500 Mobile.

I have a problem: my external monitor sits about 4 inches above my 
laptop LCD screen. So, for example, when I move my mouse to the right, 
onto the external monitor screen, the mouse jumps up 4 inches visually. 
It's disorienting for me.

On Windows XP, you can drag around the screens to tell Windows where the 
monitors are physically located relative to each other. This makes it so 
when I move the mouse over to the second screen, it moves down 300 
pixels or so, but visually, it's at the same vertical location.

I was wondering if there's a way to do this with MergedFB mode.

Thanks,
-Keith