Since upgrading to Mavericks, I am no longer able to launch iTunes in 32-bit mode. Anyone else have this issue? To test it, go to your applications folder and right-click on the iTunes application bundle, and select Get Info. Then check the box that says "Open in 32-bit mode". Then try and launch iTunes. I get this message: "iTunes Requires 64-bit mode" (see attached screen shot) This is iTunes version 11.1.1 which launches in 32-bit mode fine under 10.8.