Now at this point I would uninstall the drivers for Helix from your computer.
Go to device manager.
Under "view" choose show hidden devices.
This will show you lingering usb protocols. Now under USB...All of the grey ones you can right click "uninstall", if the option is available. The lighter grey ones are for things not connected, and they will automatically install once you re-connect the various devices.
Now re-install the drivers (following Line 6's instructions), making sure they are up to date.