Actually, I'm not sure you're supposed to get a 'puzzling' error in that context... (as you may have guessed, there are different types of errors, and I find using real English adjectives more useful than bland numeric identifiers).
[rab] I'm bothered : Is that little Teddy made from montelimar nougat ? He sure looks like he is. If so, is he in danger of being eaten ? I sincerely hope not.
[Blob] I'm not sure. You see, I'm a callous barstool, and stole the teddy from some small infant somewhere. He was seasonable at the time, but is losing his relevance rapidly. I must remember to remove him from the serious pages when I get around to writing them.
Currently viewing this wonderful place in Opera, and the front page doesn't render correctly - the table of games is neatly placed on the left instead of in the middle...
(that being the result of a couple of sunny hours in a beergarden). Does that mean I don't have to do anything? I've not taken a look at Opera for a while, so I'm not sure as to the distinction between these modes of which you speak.
(being invented rhyming slang). Opera has two modes - one is author mode, which is its standard thing, and it has user mode, in which exist various options like "Emulate text browser", "ignore frames", and "Accessibility layout". It's a rather nice browser actually, and more compatible than Mozilla has a habit of being with things like java.
[GIII] The thing is, this is actually a bug in the browser, and therefore something I'd rather not work around. Perhaps you could email the Opera people pointing out this anomoly? This goes for IE users who don't see transparancies on the icons on the grey backgrounds.