I have some users who can see the Mailbox Usage meter in webaccess for gw8, and some that do not.

I've looked in client options for both the user and po, I've checked the web access gateway and application objects and can't seem to find anywhere where this can be toggled.

Any ideas as to why some users see it and others don't? Browser setting?

The only difference between the users is that the ones that do not see the meter are in a different container in the tree.