"Could not open default font 'fixed'"
This very special message caused my Xorg 7.2 server to crash on startup, repeatedly. It turns out that Slackware 12.0 has a known bug whereby it doesn't quite get the X fonts install 'right' the first time around. The fix is simple: reinstall the packages "fonts-misc-misc" and "fonts-cursor-misc". Fault confirmed in Slackware 12.0, unknown in 12.1. Since this bug only appears to really be triggered when the X server is installed into an existing Slackware system, but not when a system including an X server is installed all at once, I don't imagine this will be a problem for many people. Still, I thought I'd scribble the fix down somewhere public, to add my voice to the throng of people making this suggestion.