In an attempt to fix mysterious firewall errors I'm having, I re-installed NOBU on this computer. Now when I log in to my NOBU account, it shows two computers with the same name as well as a third with a different name (that one is correct). It doesn't seem to recognize this as the same one. If it attempts a full backup of this computer, it's never going to have enough room. I also don't want it to completely start all over again with a full backup which will take mega-hours. How do I get NOBU to recognize this as the same computer it already has just a new installation of the client software?
Windows Vista Home Premium (with all updates)
NOBU current version
NIS 2012 current version