I've just put the search feature back into my index.php, and went to try it. I searched for three times, for single words, but when I search for 'blue' (and this happened twice) I get this appear;
The post with the word appears, with inline comments, and I see
Warning: Invalid argument supplied for foreach() in /home/virtual/site97/fst/var/www/html/T2/wp-comments.php on line 65
But I use popup comments.
I've not altered anything significant - just some code to have comment authors appear next to the comments number).
Any ideas ?