I threw it all to the wind tonight, put my faith in Time Machine, and completely reformatted.
Still nothing - even with the complete format and reinstall the drive only showed 237 Gigs.
I reset the NVRAM and formatted/reinstalled again, and same result.
FWIW Time Machine worked...
Sorry to dredge up this post, but I've got this same problem.
I have a new (aluminum) iMac with a 320 Gig HD, running Leopard.
I partitioned 60 gigs to run XP, but after an unfortunate series of events (Windows blew up) I thought I did a clean uninstall.
However, when I went to...