I am using the 3.6.1 version of Atahualpa in WP 3.0.5.; db charset is utf8_general_ci.
When the "à" character (ANSI 224) is contained in an article:

- if you search (in the default WP search box) just for the "à" character (or for a word including it) search returns nothing.;
- if you search for another word included in the same page than "à", it returns a question mark instead of each "à" character present inside the shown text.

Please note that this behaviour is shown only in Atahualpa.

I solved this problem replacing all occurrences of

"preg_split("/\s+/"

with

"preg_split("/\s+/u"

in the code inside "functions.php", particularly in "function bfa_wp_trim_excerpt($text)".

Thanks, added for 3.6.5