My PC runs Windows XP. I installed Norton System works 2005 and uninstalled it, but the problem is that the uninstallatuion did not remove the program( Control panel add/remove programs). Every time i try to install a new copy of the program it wouldn't let me. It brings up a message saying that another version of the program is running and instops.dat files are missing. I'm trying to remove the previous copy and do a new installation. Please help, thanks.