Sorry this is not going to be a real answer, but it will give you a start point. I returned from Iraq about a month ago and had the same problem. I was also lagging so bad in Serpent Spine zones that I broke down and bought a new computer. When I went back to mapfiend.net it worked perfectly. Therefore, I would say that mapfiend requires some specific version of software. The 64 million plat question is what do you need to update or download to get it to work? Told you it was not going to be a real answer.