When creating the Computer Account, you must add the checkmark in the second screen: This is a managed computer" and then you must either put in the GUID or the MAC address.
Example of a MAC Address Managed Computer:
MAC Address of computer: AA-BB-CC-DD-EE-FF
GUID for MAC Address Managed Computer:
00000000000000000000aabbccddeeff
then click next and fill in the rest of the information. If you don't enter it, you won't get the all the tabs in the computer profile.
"In space, nobody can hear you click..."