Trusted Devices Not Shown In Console

Hi,

In my user profile I see a section called 'Trusted Devices', however there are currently no trusted devices listed - only a message that reads 'Currently, you do not trust any device.'

Now, eariler today I set up a small handful of PCs and was required to authorize or 'Trust' by first responding to an email.  This all workd perfectly and all PC's AFAIK are now trusted.  It is just that they don't show up in the mamangement console so I cannot manage them.  At some point I am sure I will want to revoke some of them.  Why would they not be there?  Is this an issue or am I looking in the wrong place?