im having problems with c_trace right now.. my game worked perfectly untill i updated to a6.5, now the c_trace no longer works... the target vec is not updated and im not sure if it is actualy tracing at all...anyone had a similar problem?

i am using two vec_for_screen instructions and then tracing between them, for an RTS game. i dont know weather its the c_trace or the vec_for_screen thats the problem...help?