Thx. But that is what happenes:
SELECT u.userid, count(p.postid) AS qs, count(p.selchildid) AS selected FROM qa_posts p, qa_users u WHERE p.type="Q" AND u.userid=p.userid AND u.handle='xxxxxxxx'
Error 1140: Mixing of GROUP columns (MIN(),MAX(),COUNT(),...) with no GROUP columns is illegal if there is no GROUP BY clause