Error page for gallery editors

[StuartDH]

We've got a problem with some of the images on our gallery, when trying to edit images that have already been posted. As an admin, when I click 'save changes' it goes to:

../gallery/image-8110.html

but for 'gallery editor' accounts it goes to:

../gallery/editimage.php

and gives the error - "No Image specified. If you followed a valid link, please notify the administrator"

We've got vBSEO installed, but it appears to be a problem associated with usergroups, rather than the renaming of URLS.

Any ideas?

Stuart

[KW802]

StuartDH, if you temporarily turn off vBSEO through the ACP does the problem still occur?