Display problems after installing GA in Ubuntu 9.10

[thie]

Running VirtualBox 3.1.6 r59338 on a Solaris 10 x86 host (Dell Optiplex 755).
The Guest OS is Ubuntu 9.10, updated to latest via the update manager and dkms is installed.
Display settings: 32 MB video memory and 3D acceleration enabled.

Everything works just fine until after I install the Guest Additions.
Attached are screen shots before

Before_GA_Installation.jpg (126.87 KiB) Viewed 1079 times

and after

After_GA_Installation.jpg (116.21 KiB) Viewed 1081 times

GA installation
As you can see the display becomes partially garbled, particularly in the areas where you move the
mouse and/or popup menu's.
Any clues or somebody seen this before.

tia,
Tim

[blari18]

I have the same problem

[thie]

Update: the problem is gone in Ubuntu 10.04 beta 1 so I guess I'll take the practical approach and use that for now, it's going to be officially released in a couple of weeks anyway.