SEPM 12 Added computer appears in User mode

I deployed SEP 12 to 6 PCs (Win7 64-bit) and then added them all to SEPM 12 using Add Client and importing a text file with the 6 ip addresses. 4 of them appeared in SEPM correctly as computers, and 2 appear as Users. 

I deleted the user records and re-added a client manually, entering the computer name and being sure to select Computer Mode.

It still showed up in the client list as a User.

I know you can't switch clients from one mode to the other. How do I get these records to import correctly?