I have tried everything you have suggested on your sites, but my computer is still giving me error 8921,245. Everytime I try to run a live update it says live update already in progess, and thats it. I have even tried uninstalling NAV 2011 to reinstall, but it would not let me unistall it. I have only had your program for a few weeks, and getting tired of how it is not working correctly. Please help.