screen resolution is always set to 1024x768 instead of 1440x1050

[LAZA]

Upgraded a virtual Quantal 64 bit to Raring alpha:

The screen resolution is always set to 1024 and changes are not saved!

Host:
Xubuntu Precise 64 bit
Linux xubuntu3 3.5.0-23-generic #35~precise1-Ubuntu SMP Fri Jan 25 17:13:26 UTC x86_64 x86_64 x86_64 GNU/Linux
VirtualBox 4.2.6~Ubuntu~precise

Guest:
Xubuntu Raring
Linux Quantal 3.8.0-3-generic #7-Ubuntu SMP Thu Jan 31 15:15:43 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux
Virtualbox-guest-utils 4.1.22-dfsg-0ubuntu2

ProblemType: Bug
DistroRelease: Ubuntu 13.04
Package: virtualbox-guest-utils 4.1.22-dfsg-0ubuntu2
ProcVersionSignature: Ubuntu 3.8.0-3.7-generic 3.8.0-rc5
Uname: Linux 3.8.0-3-generic x86_64
ApportVersion: 2.8-0ubuntu4
Architecture: amd64
Date: Fri Feb 1 20:11:04 2013
InstallationDate: Installed on 2012-10-20 (104 days ago)
InstallationMedia: Xubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.1)
MarkForUpload: True
SourcePackage: virtualbox
UpgradeStatus: Upgraded to raring on 2012-12-08 (55 days ago)

[LAZA (laza74)]

Seems to be fixed in the new release of virtualbox 4.2.8-guest-dkms!

But should be corrected for those who used virtualbox 4.1.x

[LAZA (laza74)]

It's back since some days... at my Precise machine!
Sorry, i do not have more infos why and what is causing the problem.