plazzTT

Hi, I've been using HyperTerminal up until now to read data off a Serial Port. (COM4, it's with a Bluetooth Serial Port Service) I'm trying to use LabView instead to do this now, just read data off the serial port and output it to a textbox (for now). I've read a few of the threads here about it, and I have a question about how to specify the "VISA Resource Name" in the VISA Configure Serial Port function. When I create a constant off it, it makes a dropdown box, but there is nothing in it, only "Refresh". Should there be a list appearing here? I've attached a picture. I've manually typed in COM4 now, is this correct? I get an error when I run the VI shown below. The error source is "Property Node in VISA Configure Serial Port (Instr).vi->serial.vi" Any pointers would be great. Thanks, John.