HTML Code:
http://archlinux.reddit.com
cannot be viewed in opera; Seamonkey works. IIRC all other ( reddit.com/r/linux ) for example, no problem... Maybe some CSS trick could fix it.
OTOH not the problem here it once was due to font improvements...
/EDIT///
One of the filesystems crashed (disk bios/hardware) Parts of /etc not readable.
Migrated to a spare backup... which unfortunately was v9 not v10. Upgraded it
to v10... Opera is now working fine again.
Edit 2
updated the thousands of pkgs ( ABI )... broke opera (usable as per the initial post.)
Should have mabye left them not updated.