Following are some screenshots of Opera9 displaying the ACID2 test. There is no doubt, Opera passes the test without flaws. Applying different display-options like zoom or fit-to-width change the visual appearance on purpose and thus the faulty screenshots are not a sign of failing at the ACID2 test. It simply shows the capability of Opera to change the delivered content for special purposes.
ACID2 renders fine with default settings
ACID2 is broken with Medium Screen Rendering (MSR) applied (fit to widht). MDR is activated with the option fit to width
ACID2 with applied page zoom ("+"/"-")is slightly broken – it breaks different with different page zooms. Press "6" to bring it back to 100%. With 200% it seems to work, too.
ACID2 at 60% page zoom
ACID2 at 130% page zoom
Screenshots taken with Opera9 final, international installer on WinXP SP2
The test can be found on http://www.webstandards.org/files/acid2/test.html