Any updates? This issue comes from release to release. What the hell?

@linuxmint7, aren't you from Russia, bro? )
The same goes for me, I've used to long. Sometimes Opera 12 due to rendering problem cause whole OS to hang. A week ago I moved to Opera 22, cause there were too many freezes on some sites during using of 12. And 22th Opera was the final reason go gave up on Opera browsers. I got here just to solve issue with nav bar hiding, as Web developer I still tests sites under Opera too, but browser of choice has changes for me. And due to lack of some functionality I'm still trying to get used to Chrome, still better then Opera 22.
Opera 12 was so much good, that I wouldn't understand that if it wasn't discontinued.

linuxmint7

Why not?! It was the best browser ever, when it was 12. It just needed rendering functionality from chromium. But now it doesn't differs from any other browser, but Chrome doesn't have this bugs. What makes Opera unique not?

Just don't use Opera, and you won't have to always follow theirs whims. This browser went dead on Opera 12.