I am trying to back up files from my main external hard drive over to the external hard drive that I use for backup. I select 2nd HD in the set up screen, but it automatically changes it to the HD that I want backed up. Even if I go in and edit it afterwards and select the HD I want from the drop down menu it still automtically changes it so that the HD I want backed up is the destination HD as well.
I do not have an administrator account, but I bleieve there are not any restrictions set. However, I could be wrong about this.
I will look into changing the drive letter and get back to you.