It fell out of the skies today that Opera suddenly wouldn’t load any pages, not even feeds. I ran it from command line and got this not very verbose message:
Opera: X Shared memory extension is not available. ZPixmap not supported
So to find anything useful I had to start Firefox… I did find something not via google but rather right at the source at opera forums. That got me started. I tested if that was the problem by adding the suggested line to /etc/X11/xorg.conf (not without backing up the config file!) and restarted X before installing the brand new driver version as suggested.
X Shared memory extension seams to be available now — no more error message at start up. But still Opera doesn’t load any web content.
Than I moved the preferences folder to a backup location for testing. Now Opera seams to work fine. But what use if all my preferences are lost?!? Anyway, since I don’t have the time to dig in deeper and I cannot find anything on Opera’s forum on this issue I might as well just copy the important preference files over to the “fresh install” and change the rest of my settings manually. After all it’s always a good idea to start over once in a while…