It does. I already tried all of those things and still no joy. Just making sure I didn't miss anything. My USB module is a cheap Chinese Prolific knockoff I picked up on eBay but it look identical to the Amazon link shown in the first post of this thread.
I also tried the USB plug from my handheld ham radio with and without the resistor. It too transmits fine, but also no receive.
I'm not sure at this point if I should spring for another USB module, another Pro Chrono, or just forget about it. I guess the best/cheapest route would be to build another cable first using a known good module. Anyone have a link to a tested FTDI chipset module?
Ryan