Thanks for the kind reply. However I still have the problem, after a few weeks of hacking at I seem to understand what the problem is but I cant seem to fix it. I see it with the diagnostic utility, as it if fails identify the right ports, and I can see the ports assigned in the device manager, but the devices are failing to actually connect as a com port. Ie any programs cannot see the actual com port as the device mananger has them assigned. I've tried this on two different computers now,two different OS's same results. I'm convinced it's something I'm doing wrong on the set up.