Problem: Casting any kind of mesmerize spell/song on a mob that is moving will result in the mob continuing to move for the client. (See also 
here, second post.)
Solution: Add a SendPosition() to Mob::Mesmerize() in zone/spells.cpp.
	Code:
	File: zone\spells.cpp (rev1290)
@@ -3643,6 +3643,7 @@
 
 	if (casting_spell_id)
 		InterruptSpell();
+	SendPosition();
 
 /* this stuns the client for max time, with no way to break it -solar
 	if (this->IsClient()){