I have bought a used GV 650 to replace a generic Pico 2K that has been no trouble apart from picture quality I have installed the 6.11 software that came with the card all genuine the problem I have is with the remote viewer the picture is very blocky any ideas on this one also can I run a later software with the card I ran the Geovision Detectsys and it came back with if I have a usb dongle I can upgrade to 7050 otherwise I can upgrade to 6050 which is an earlier version that came with the card I am a little confused, are dongles still available Thanks for any help.