No writable WD SmartWare partition found

Update to my previous post. 

Only on my Vista laptop: 

I uninstalled the WD Smartware and the update (2 separate uninstalls - the update first) then reinstalled original version from CD.  I did NOT update the software.  The drives appeared as they should.  I did a full backup and it appears to have worked fine. 

I just got a reply from WD support but have not had time to review it. 

The software on the XP PC remains unusable. 

Side note: On both machines I have done successful backups with third party software - Norton and EZ BackItUp.   I am sure there are many other third party backup software out there. 

My goal is to get this to work without reformatting my drive.  But at the end of the day, we can use any software to back it up. 

I will keep you posted.  Any other input is appreciated. 

Thank you.

Dave