As Francislaremote told You, this is server`s problem, because most of servers, excluding off, is beta or hacked versions of L2 servers. So, not all functions work properly... For example, I use the same klient for playing on different servers and on each server I found different problems...As you can see, if I have getting the same bugs on differnt servers, I`ll be able to tell, that my klient is wrong, but....:)