It seems to be a conflict to installed files of the nVidia driver. I had installed the current version NVIDIA-Linux-x86-173.14.05 and after a sanity test it reports:
| WARNING: Your driver installation has been altered since it was initially | installed; | ERROR: File '/usr/lib/xorg/modules/extensions/libglx.so' is not a symbolic | link. After re-installing the nVidia driver I got the GL screensavers back. Examined in a next step the folder '/usr/lib/xorg/modules/extensions/libglx.so' before and after the driver installation. Before: ~~~~~~ | -rw-r--r-- 1 root root 429042 21. Jun 23:48 libglx.so | -rwxr-xr-x 1 root root 1269664 16. Jun 11:23 libglx.so.173.14.05 After: ~~~~~ | lrwxrwxrwx 1 root root 19 25. Jun 08:50 libglx.so -> | libglx.so.173.14.05 | -rwxr-xr-x 1 root root 1269664 25. Jun 08:50 libglx.so.173.14.05 So it seems that the installation of the latest xserver-xorg-core has overwritten the link with a same named file, the previous link is brooken now to the nVidia driver and the GL screensavers (and maybe other GL-related things too) are no longer working. -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]