The QR code is stretched out on Safari 2.0 on Mac OS X 10.4, and it's also not using the desktop view with two columns. This might require using hardcoded pixel width values as the base CSS, with overrides in the media queries.
This should be fixed now, I noticed the same issue with the QR code on Netscape 6 and fixed it with new CSS code. Browsers without media-query support will keep the one-column layout.
The QR code is stretched out on Safari 2.0 on Mac OS X 10.4, and it's also not using the desktop view with two columns. This might require using hardcoded pixel width values as the base CSS, with overrides in the media queries.