When I plug in a external USB drive and want to check its S.M.A.R.T. status in Disk Utility (palimpsest) I cannot because the option is greyed out. Is there an option somewhere to enable this feature? It works fine for internal IDE/SATA drives.

I know the USB drive supports S.M.A.R.T. because I can use smartmontools and front end GSmartControl to get the information, but I'd rather not have to use use it since palimpsest is already installed by default.

Thanks