I was having an issue not being able to get back to my OS X install on a second drive. I went into my bios and changed my HDD boot priority to boot the OS X disk first. That allowed me to see my darwin bootloader but no windows option (on the other HDD). I booted into OS X and installed the Chameleon 2.0 beta, restarted, and BAM! Everything showed up in the bootloader. Beautiful. I almost cried.