Wallpaper is not diplayed correctly after login

[Mario Pezzoni]

Every time i login on my dual-screen desktop the left wallpaper is incorrectly displayed. Any action on the system force the wallpaper to be reprinted correctly and remove the problem but, if i logout and re-login the problem is still there.

An example is in the attached file. If you look carefully the wrong block looks like scaled (printed with a lower resolution).

Thanks for your time.
---
Architecture: amd64
CompizPlugins: [core,bailer,detection,composite,opengl,decor,mousepoll,vpswitch,regex,animation,snap,expo,move,compiztoolbox,place,grid,imgpng,gnomecompat,wall,ezoom,workarounds,staticswitcher,resize,fade,unitymtgrabhandles,scale,session,unityshell]
DistroCodename: natty
DistroRelease: Ubuntu 11.04
DistroVariant: ubuntu
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release amd64 (20110427.1)
InstallationMedia_: Ubuntu 11.04 "Natty Narwhal" - Release amd64 (20110427.1)
InstallationMedia__: Ubuntu 11.04 "Natty Narwhal" - Release amd64 (20110427.1)
NonfreeKernelModules: nvidia
Package: unity 3.8.16-0ubuntu1~natty1
PackageArchitecture: amd64
ProcEnviron:
 LANGUAGE=en_US:en
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.38-10.46-generic 2.6.38.7
ProcVersionSignature_: Ubuntu 2.6.38-10.46-generic 2.6.38.7
ProcVersionSignature__: Ubuntu 2.6.38-10.46-generic 2.6.38.7
Tags: natty running-unity natty running-unity natty running-unity ubuntu
Uname: Linux 2.6.38-10-generic x86_64
UnreportableReason: Please work this issue through technical support channels first.
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare

[Harry van Haaren (harryhaaren)]

So is the primary problem that that "block" is being displayed where it shouldn't be, or is the core problem the quality?
Marking as incomplete for now

[Mario Pezzoni (pezzoni-mario)]

Sorry didn't see your answer. The problem is that is really ugly and give a beta feeling. Nothing critical but...ugly.

[Omer Akram (om26er)]

please run 'apport-collect 778991' so we have a little information about your system as well

[Mario Pezzoni (pezzoni-mario)]

apport information

[Mario Pezzoni (pezzoni-mario)]

apport information

[Mario Pezzoni (pezzoni-mario)]

This is not the same installation of the first bug report but the system is. With a fresh installation the problem is not solved.

[Mario Pezzoni (pezzoni-mario)]

If you need more info let me know.

[Launchpad Janitor (janitor)]

[Expired for unity (Ubuntu) because there has been no activity for 60 days.]