Hi, my first post on this forum. I have a JVC DV - GR4000 camcorder that has worked perfectly on Pinnacle Studio 11. After downloading upgrade to Studio 14 Ultimate, cannot get either the PC or the programme to load my videos. I bought another installation disc from JVC and that loads image mixer, but when I come to load the driver code GR something, I get Error 342, unistallShield is active please remove. But I don't know how to? Anyone help please?