I have IDVR with 8 cameras. I have installed the EMS software on my office computer and 2 other computers on the sales counter. Up until a couple of months ago all was fine. Now when I try to open EMS on any of the computers nothing happens. I have tried to uninstall the program, but it will not uninstall. I have tried to reinstall the program but it will not reinstall. All computers have Windows 7 Home Premium. Not sure what other information to provide. Any ideas?