I've already upgraded the firmware from 1.02US to 1.29K, which I grabbed from here. The upgrade went just fine, and now I want to rockbox it. I've tried using RBUtil on Windows and Linux, and neither of them gave me an error, so I assumed they were successful at installing the bootloader. However, when I upgrade the firmware, it's still the original. RBUtil worked just fine when I rockboxed on my H120 just a couple of weeks ago. So what else do I need to do?
On Linux, I'm using RBUtil from svn, on Windows it's just the binary provided. Rockbox version 3.3.