To download the necessary QuickCam Connect driver you should know the PRO50SR-AP348C model of your X59SL-AP337C device, and your OS type. A X59SL-AP337C driver for some other operating system may prove to be useless for you. Search engines or popular QuickCam Connect driver websites can help you in finding X59SL-AP337C file you need. If you have a new Logitech or outdated X59SL-AP337C, we suggest that you use old well-tried QuickCam Connect drivers thereto, which is helpful for steady U50VG-XX103C functioning.