I was wondering if anyone could help me. I just recently got the HAC 4 from Ciclosport. Neat product, but hard to understand. I am having problems with getting the HRM to work, Cadance to work, downloading the information to the right sw component. Plus, which sw is the best to work with? The only feature I got right was the speed, and distance. I am not sure on the altitude, and who knows, maybe i screwed it all up. The directions are a bit unclear. Especially, when it comes to inputing the right data, and how to get the right data to input. Also, I was wondering if there was anyone in the Southern California, Irvine area, that could help me? My email is [email protected] Any help you can give would be greatly appreciate.