Hardware simulator acting strange, or am I the problem?

[ligman stichdeez]

I'm implementing the mux4way16, where I chose to build a Mux4way chip first, then use it in the Mux4way16. When I load mux4way.hdl, it doesn't work. However, when I load/test mux4way16.hdl, it works perfectly. What could be the issue?

Edit: I figured it out.. Chips have to have the same name as the file in which they are located
Mux4Way.hdl:
CHIP Mux4Way{
      .....
}