I don't think Edubuntu ships anything that could cause that.
I'm currently doing the following test to prove it:
1) Install Ubuntu 10.10 from netboot (so it's perfectly up to date by default)
2) Make a screenshot of gdm and default user session
3) Upgrade to Natty with update-manager
4) Make a screenshot of gdm and default user session
If the bug also affects Ubuntu, all screenshots should be identical. Otherwise, I'll get two maverick wallpaper and two natty wallpaper.
I don't think Edubuntu ships anything that could cause that.
I'm currently doing the following test to prove it:
1) Install Ubuntu 10.10 from netboot (so it's perfectly up to date by default)
2) Make a screenshot of gdm and default user session
3) Upgrade to Natty with update-manager
4) Make a screenshot of gdm and default user session
If the bug also affects Ubuntu, all screenshots should be identical. Otherwise, I'll get two maverick wallpaper and two natty wallpaper.