CentOS - Jan 2012 - no luck with CentOS 6.2 patch vboxaddition_4.1.8

Hi,

After applying the patch as described by the wiki (
wiki.centos.org/HowTos/Virtualization/VirtualBox/CentOSguest), install.sh
still results in a Fail at: Building the OpenGL support module.

I don't know how to start debugging myself. Any advise would be welcome.

Kind regards,
Henri