I have installed NIS 05 on my computer on 4 jan. My o/s is windows 98. Have Office Xp installed. Got to reboot and configuration screen did not appear and computer froze. Rebooted in safe mode and unistalled NIS (Add/Remove Programmes did not work). Previously has NAV 2001- uninstalled it and even used Rnav2003 tool to make sure. Rebooted in clean mode and NIS installed to a ceratin point then said instopts.dat missing. Used symantec website info to "fix it" and reinstalled successfully... Configuration screen appeared, activated product and then computer crashed. Rebooted and computer froze. :hotbounce Clean booted once again & Used automated assistant said registry keys for Nav 05 were missing to unistall and reinstall. I have done this twice and each time after I reboot to open up the configuration window my computer freezes. It gets as far as the desktop. What do I do? I have tried to reinstall nav 01 but this no longer works either. I would appreciate any help I could get - I have spent hours uninstalling and rebooting scared of permanently damaging my computer