I just installed a DAQ board in my compter and want to use it to control my multiplexer (ER 16). For communicating with the multiplexer, I downloaded some software for NI-DAQ 6.9-2 and support for labVIEW 6.0, which is the version of the labVIEW I am using. But all of the .vis don't work. The error infomation shows that there's something wrong with "call library function". I found then although i can find that function from the panel, i can't configure it by clicking the right key of the mouse. There's no such a item for me to choose. I wonder if this means this function isn't supported by the labVIEW I am using. Is there anybody who met such problems before? Any help from you is highly appreciated.