Search results not showing for normal users

Hi,

I've created a search scope which is based on a set as in the query below:

/*[ObjectID = /Set[ObjectId = 'bc553874-5cc0-4ec3-97f8-c64370ae6120']/ComputedMember]

This works fine for when logged in as the FIM Installer account but if I try to use the search scope as a normal user I don't see any results listed. I'm guessing this is a permissions issue for normal users so I tried granting read rights to the computed member attribute for the resource but it doesn't work... Can anyone offer any advice as to what I'm doing wrong please?

Thanks,

Lee.