Somebody in the thread at some point said:
> 13: /usr/bin/Xorg(FontFileCompleteXLFD+0x1e9) [0x8070a21]
It's something to do with your fonts... I updated an old laptop
partially to F7 over the weekend and had exactly the same problem. I
had updated all the xorg* packages but had not restarted xfs. After
that it was happy IIRC
service xfs restart
-Andy