Since installed on 2nd PC the original PC no longer backs up?

It is my understanding that WD Smartware can be used with a single My Passport Elite drive on more than 1 PC.

I had automatic bakups working ok from my Lenovo ThinkPad laptop.

I then installed the software on a Dell laptop and Dell desktop all 3 from the same My Passport Elite drive.

Now my Lenovo no longer will backup and ot appears not to have worked since I installed to the second laptop.

Am I missing a setting somewhere or does the version shipped with my drive not work this way?

Thanks,

Lee

What firmware revision is on your Passport drives?  Also, do each of your computers running the latest version of SmartWare?  Can you error check and defragment your drive as well?