No robots txt but i did write a no follow on to a file, but i have forgot which one, i will have to go back and try and figure if it was that.
I had added <a rel="nofollow"href="' in the code of functions php when i added the keyword cloud code.
maybe i missunderstood what it would have done, it was suggested on one of the boards, does that look like something that might cause the problem, i have removed it and will test again.
just tested and the problem is still there, apart from that i cant think of much else i have changed.
does the htaccess file look correct
RewriteEngine On
RewriteRule ^lightbox\.htm$ lightbox.php?%{QUERY_STRING}
RewriteRule ^lightbox\.([0-9]+)\.htm$ lightbox.php?page=$1&%{QUERY_STRING}
RewriteRule ^search\.htm$ search.php?%{QUERY_STRING}
RewriteRule ^search\.([0-9]+)\.htm$ search.php?page=$1&%{QUERY_STRING}
RewriteRule ^postcard([a-zA-Z0-9]+)\.htm$ postcards.php?postcard_id=$1&%{QUERY_STRING}
RewriteRule ^postcard\.img([0-9]+)\.htm$ postcards.php?image_id=$1&%{QUERY_STRING}
RewriteRule ^k-(.*)-([0-9]+).htm categories.php?cat_id=$2&%{QUERY_STRING}
RewriteRule ^r-(.*)-([0-9]+).htm details.php?image_id=$2&%{QUERY_STRING}
RewriteRule ^r([0-9]+).search.htm details.php?image_id=$1&%{QUERY_STRING}