The only extension i had was AdBlock, but it's been completely removed to try to figure this out.

But, I removed opuntrust.dat, restarted Opera and now Facebook works! I tried it on the work machine too and success there too. Yay!

I never would have thought to try that, because i don't know what it is. What exactly is this opuntrust.dat file?

Thanks so much everyone!

Haven't noticed anything obviously wrong on the Edit Site Preferences page- no different than on any other page. I've tried all the browser identification (IE / Firefox and Identify / Mask) but nothing has made a difference i'm afraid.

"AVs" meaning anti-virus programs? Those are disabled.

"Fit to width" is not enabled.
Presentation mode is set to Author Mode. Only "Page style sheet" and "Page fonts and colors" are selected. (If i turn those off, every page goes to the most basic html appearance.)
So sadly, those aren't the cause either.

Nope, Opera Turbo was already disabled.

OK. Cache completely cleared, facebook cookies removed. Sadly no change.

There doesn't appear to be any blocking at the firewall. Both my work and home PC's, which are on entirely different networks, have started seeing the issue at the same time. I've disabled all extensions (only one i had was AdBlock). Still no change i'm afraid. I can't figure out what has changed here. Hmmph.

Hi all-

Is anyone else having an issue with Facebook in Opera? Up until a couple days ago, it was fine. Now however, Opera is displaying Facebook in the most basic way possible- like the web page is made of tables and h1 tags and little else. All styling is gone.

I'm seeing this issue on both my home and work PCs. I'm not having any issues on any other websites. Is Facebook deliberately messing with Opera or something?

Here is a link to the issue:
http://tinypic.com/r/105um4m/8

Any thoughts?