I just migrated my farm. Everything appears to be working fine except
the summary link web part. (So far that I can tell). A user with full
control and edit the web part, add a link, but when they click "browse"
to browse to find a file or site to link to, they get a 403 FORBIDDEN
pop up. I have confirmed that the "Browse" option is selected in the
permissions for Full Control. Site collection administrators have no
issues using the browse button. I know it must be a permissions issue
somewhere but can't find where. Any thoughts or suggestions?