That's interesting indeed ! I performed some tests and was always able to see the computer's S.M.A.R.T. status by using the « Disk Utility », even without booting from the CD.
However, in order to see the status, you will have to click on the name of your hard drive ( 37.3 GB TOSHIBA, for example ) and not the name of the boot partition ( Dex's 7 Gig )...
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