`»` is the html entity encoding of » Likewise the second image shows `&``amp;raquo;` which is basically a double encoded `»`.
Presumably your theme has passed these encoded strings to the Zenphoto breadcrumb and page nav functions. As explained in the 1.4.3 release notes, Zenphoto "print" functions should be passed un-encode strings as they will encode them as necessary to meet WEB validation requirements.
actually zpArdoise 1.4.2 deals with zenphoto 1.4.2.x but not with zenphoto 1.4.3 (witch is in beta) but be sure that zpArdoise 1.4.3 will be adapted to zenphoto 1.4.3 context.
You should start updating your theme(s) now actually so it is ready when 1.4.3 comes out. We will probably on the weekend switch our own site to the 1.4.3 beta.
Please don't mix topics as that is an entirely diferent theme by a different author. Try to use the latest theme or wait until an update is being release. The quick fix is already told above by modifying the theme.
Comments
Presumably your theme has passed these encoded strings to the Zenphoto breadcrumb and page nav functions. As explained in the 1.4.3 release notes, Zenphoto "print" functions should be passed un-encode strings as they will encode them as necessary to meet WEB validation requirements.
but be sure that zpArdoise 1.4.3 will be adapted to zenphoto 1.4.3 context.