Index: wp-includes/class.wp-dependencies.php
===================================================================
--- wp-includes/class.wp-dependencies.php	(revision 11391)
+++ wp-includes/class.wp-dependencies.php	(working copy)
@@ -171,8 +171,14 @@
 	}
 
 	function dequeue( $handles ) {
-		foreach ( (array) $handles as $handle )
-			unset( $this->queue[$handle] );
+		foreach ( (array) $handles as $handle ) {
+			$handle = explode('?', $handle);
+			$key = array_search($handle[0], $this->queue);
+			if ( false !== $key ) {
+				unset($this->queue[$key]);
+				unset($this->args[$handle[0]]);
+			}
+		}
 	}
 
 	function query( $handle, $list = 'registered' ) { // registered, queue, done, to_do