I'm trying to help a friend install NAV 2008. He had NIS installed, but it won't uninstall via Add/Remove Programs. I downloaded and ran the Norton Removal tool numerous times both in normal and in safe mode. I disabled all programs in startup. When tying to install NAV 2008, it immediately goes into an Uninstall routine, with no other options. Them the progress bar says "Initializing", and it hangs.