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.
/****************************************************************
Docking Boxes core CSS: YOU MUST NOT CHANGE OR OVERRIDE THESE
*****************************************************************/
.dbx-clone {
position:absolute;
visibility:hidden;
}
.dbx-clone, .dbx-clone .dbx-handle-cursor {
cursor:move !important;
}
.dbx-dummy {
display:block;
width:0;
height:0;
overflow:hidden;
}
.dbx-group, .dbx-box, .dbx-handle {
position:relative;
display:block;
}
/****************************************************************
avoid padding, margins or borders on dbx-box,
to reduce visual discrepancies between it and the clone.
overall, dbx-box is best left as visually unstyled as possible
*****************************************************************/
.dbx-box {
margin:0;
padding:0;
border:none;
}