There was a power failure & surprisingly my UPS went off & did not work on batries.So the computer was terminated abruptly. When I restarted the comp,NAV 2005 did not load in the startup.. when opened NAV everything was in red giving error. Then I unintalled NSW 2005..but it did not uninstall(the uninstaler closed automatically). So I deleted the folders manually & searched for norton in the registry & deleted the entries as told in this thread. when I try to install after that I get the following errors: when I click OK,I get this: How do I get them back to work. Thankz!!!!!