I am running Windows 7 64 bit Ultimate edition and tried to use my USB to Serial converters that I've used for the past few years to control my radio. I downloaded the latest Prolific drivers and installed them yet the USB to Serial converters still come up that Windows Failed to Install Device or something along those lines. When I go into device manager the converter does appear in the list but it has a yellow exclamation mark next to it, in the device properties the error message is "This device is not configured correctly. (Code 1) The name is already in use as either a service name or a service display name." Everything I've tried still hasn't helped. Does anyone have any ideas on what could be causing this? If I can't get it working then what does everyone else use for usb to serial adapters?