Hello! The bug with onUpdate of Sortables not working without an id would only be half as annoying if the bug description mentioned that the id must have the format "containerid_something". It has cost me hours before I figured this out! For everyone who has the same problem: look at how the ids are structured in the puzzle demo to get an idea why your onUpdate function is never called. Gabriel -- describe europe Ltd. Ressort IT Eckerstr. 6 30161 Hannover (+49) 511 - 2207911 http://www.d-scribe.de/