Well I'm an idiot - the fulltext index on page_text was missing from a default installation. It didn't break searches but probably slowed them down tremendously. Also set engine to MyISAM on page_text to avoid cryptic error messages from MySQL.
body {
background-color: #FFFFFF;
font-family: Verdana, Arial, Helvetica, sans-serif;
font-size: 10px;
scrollbar-3dlight-color: #F0F0EE;
scrollbar-arrow-color: #676662;
scrollbar-base-color: #F0F0EE;
scrollbar-darkshadow-color: #DDDDDD;
scrollbar-face-color: #E0E0DD;
scrollbar-highlight-color: #F0F0EE;
scrollbar-shadow-color: #F0F0EE;
scrollbar-track-color: #F5F5F5;
}