I had V4 working on my vr v6 series 2, reading chatter and displaying information once a on ibm laptop now on compaq and have tried several times since with no luck. It will show interface cable as connected to computer but will not read chatter and shows no connection to car. Already removed program from computer and installed again but no joy. ??? If I were to download the full version would that have a chance of curing my problem or is there something else causing it. I have the cable connected to com 2 and V4 shows com 2 as active but it wont work. I am using a compaq evo running xp pro so it ought to go like a mongrel dog. as it is I think the dog died. Hope you can help or at least give a few ideas. email@example.com kevvrv6 PS changed settings from 9???? to 720? and will try again. cable installed using usb but identified as a port device so lowered port setting too. might be a fix for some one else. I am running xp pro with sp3.