alfred-defrag

hello, I am using the defraggler on different machines and I am very happy with it, but on one notebook the health tab (column with condition of the drive) does not show. (Shows very briefly, just flashs) Want to check "C" the ordinary way, I can defrag it successfully, but no health shows. What's wrong, can someone help please? System: Dell Latitude D620, Intel, Win7 SP1 32bit, Office2010, C=Fujitsu..., defrag updated today. Best regards Alfred