This query makes never gets done... and it keeps a thread open in the processlist for a long time!!! Very annoying!

This query can sometimes draw back the whole database causing some, or all, data that is extracted from the database to not show. Can u experts scan through this for me? I really need some help! ----------------------------SQL--------------------------------------------- ------ SELECT DISTINCT $this->artikkeltbl.artikkelid as artikkelid, $this->artikkeltbl.tittel as tittel, $this->artikkeltbl.hovedingress as hovedingress, $this->artikkeltbl.dato as dato # Selects different parts of newsarticles: id field, date, title, toptext and main text FROM $this->artikkeltbl, $this->relasjonstbl # from two different tables the article table and the relation table WHERE $this->artikkeltbl.tittel LIKE '%$sqlx%' OR $this->artikkeltbl.ingress LIKE '%$sqlx%' OR $this->artikkeltbl.hovedingress LIKE '%$sqlx%' OR $this->artikkeltbl.brodtekst LIKE '%$sqlx%' # var $sqlx is the search string varying from page to page. AND $this->artikkeltbl.artikkelid = $this->relasjonstbl.artikkelid # Relation to the relation table AND $this->relasjonstbl.portalid = $portalid # Only selects articles within a spesific category. ORDER by artikler.dato DESC LIMIT $x2,$x1 # u know... ----------------------------SQL--------------------------------------------- ------ I have divided the website into different portions, and assigned them with unique id`s ($portalid). I am trying to search through articles that are only assosciated with that spescific portalid. What am I doing wrong? This is meant to be a simple search utility on the page.