Goto device manage, disable the optical drive and change the drive letter for the harddrive and then reenable rhe optical drive and you'll be setAlso explorer shws slave drive as "e" and cdrom as "d". Any help to sort these out?
Motorola's site indicated a clean install (not an upgrade) of Windows XP is required to get the SM56 to function in XP; and, that once installed, the driver cannot be upgraded.