Please describe the problem:
Release:
Ubuntu Intrepid 8.10

Hardware:
Acer TravelMate 4220
Ati Mobility x1300 video card

Video driver:
ati (radeon)

Setup:
Multi-monitor setup using gnome-display-properties.
Secondary screen left of the primary. Secondary screen offset from the bottom
by some pixel.

Problem:
Icons on the secondary screen cannot be placed higher than the top of the primary
screen. (See problem illustration).
"Auto-arrange icons" on desktop places icons on the left monitor (this is
not a problem), but below the top edge of the right monitor.

Other problems:
Icons can be placed in the blind spots around the smaller monitor.

Window management maximizes and snaps properly. But new dialogs (eg the
alt+f2/run dialog) is not placed properly.

Steps to reproduce:
1. enable multi-monitor setup with gnome-display-properties
2. move secondary to make the upper edge higher than the upper edge of the primary screen
3. Try to place icons on the secondary screen higher than the upper edge of the primary screen.


Actual results:
Icons cannot be placed "higher" than the edge of the primary screen.

Expected results:
Icons on the desktop should be constrained by their current monitor

Does this happen every time?
yup

Other information: