Missing "Backup" icon in Navigator

Hi,

Have the following issue - the "Backup" icon in my Navigator is missing so I'm not able to schedule backup via Studio. Here is a screenshot:

We've just upgraded to SPS5, my Studio version is 1.0.38. I've tried to backup with both SYSTEM and a regular user, both have required privileges (catalog read and backup admin).

Is there anything I should set up differently? 

Thanks,

Tom