I am running a Flex 6300 with SSDR 1.3.8 on a Windows 7 machine. I just received a new Flex Control and am unable to get it to work at all. I killed SSDR, CAT, and DAX and then plugged in the control to a USB port on my computer. The driver installed fine. I then restarted the software and nothing worked. I noticed that Flex Control was assigned to the same Com port at SSDR, so I reassigned it to a high-numbered port and rebooted. I'm still having no luck to get it to work. Device Manager shows one physical com port, 4 com ports assigned to SSDR, and the one Com port assigned to Flex Control. No other com ports are assigned. I've tried this on several USB ports on the computer. I'm not sure where to go from here. I opened a support ticket but haven't heard anything on it. Any suggestions?