Reproduced with Inkscape 0.48+devel r9762 on OS X 10.5.8 Console messages if search returns no results:
http://openclipart.org/media/feed/rss/foo:1: parser error : Document is empty
^ http://openclipart.org/media/feed/rss/foo:1: parser error : Start tag expected, '<' not found
^
Reproduced with Inkscape 0.48+devel r9762 on OS X 10.5.8
Console messages if search returns no results:
http:// openclipart. org/media/ feed/rss/ foo:1: parser error : Document is empty
^ openclipart. org/media/ feed/rss/ foo:1: parser error : Start tag expected, '<' not found
http://
^