Evolution folder tree is not always redrawn when using fglrx and Xgl

Binary package hint: xserver-xgl

Ubuntu 7.10

Some packages:

ii evolution 2.12.0-0ubuntu5 groupware suite with mail client and organizer
ii evolution-common 2.12.0-0ubuntu5 architecture independent files for Evolution
ii evolution-data-server 1.12.0-0ubuntu5 evolution database backend server
ii evolution-data-server-common 1.12.0-0ubuntu5 architecture independent files for Evolution D
ii evolution-data-server-dbg 1.12.0-0ubuntu5 evolution database backend server with debuggi
ii evolution-dbg 2.12.0-0ubuntu5 debugging symbols for Evolution
ii evolution-exchange 2.12.0-0ubuntu1 Exchange plugin for the Evolution groupware su
ii evolution-plugins 2.12.0-0ubuntu5 standard plugins for Evolution
ii evolution-webcal 2.12.0-0ubuntu1 webcal: URL handler for GNOME and Evolution

ii xserver-xgl 1:1.1.99.1~git20070727-0ubuntu3 GL-based X server

$ fglrxinfo
display: :0.0 screen: 0
OpenGL vendor string: ATI Technologies Inc.
OpenGL renderer string: ATI MOBILITY FireGL V5200
OpenGL version string: 2.0.6747 (8.40.4)

When I have Evolution _maxmized_ with _keyboard focus on the list of messages_, and then start or swap to another application that covers the folder tree, and then swap back, the folder tree is not drawn, the area is just white. Unmaximizing the windows will make it redraw properly. No visual effects enabled.

I'll attach a screenshot if possible.

If I create ~/.config/xserver-xgl/disable, logout and login again, I cannot reproduce this issue.