Error Deleting

After what seemed to be a successful embedding of G2 into a site I get this message when trying to delete items. Can anyone help?

Security Violation
The action you attempted is not permitted

Error (ERROR_BAD_PARAMETER) : Class ItemDeleteSingleView not defined in core.ItemDeleteSingle
in modules/core/classes/GalleryView.class at line 194 (gallerycoreapi::error)
in modules/core/ItemAdmin.inc at line 123 (galleryview::loadview)
in modules/core/classes/GalleryView.class at line 293 (itemadminview::loadtemplate)
in main.php at line 465 (itemadminview::doloadtemplate)
in main.php at line 104
in modules/core/classes/GalleryEmbed.class at line 189
in gallery2embedded.php at line 21 (galleryembed::handlerequest)

System Information
Gallery version 2.3
PHP version 4.3.11 cgi-fcgi
Webserver Apache
Database mysqlt 5.0.67-log
Toolkits SquareThumb, ImageMagick, Thumbnail
Operating system Linux linhost218.prod.mesa1.secureserver.net 2.4.21-53.ELsmp #1 SMP Wed Nov 14 03:54:12 EST 2007 i686
Browser Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.0; SLCC1; .NET CLR 2.0.50727; Media Center PC 5.0; .NET CLR 3.0.04506; InfoPath.2)