I'm having an issue with Dell Precision M4400 laptops with WD Scorpio SATA hard-drives. Essentially the machine will boot to the point of saying "Starting SafeBoot 5.1..." and will then hang with a blinking cursor. In reading another post on this site, someone mentioned enabling the "EEPC51 OPTION: Update number of sides reported in the OS boot sector" as a way to resolve the issue. I've been trying to find more information about this fileset, but have come up empty-handed. Does anyone have any data on what this option does?