Installed NAV 2002 on 2 Sys, both XP-Pro. On one fine no problem. no infection found after complete sys. scan.(PII/400,64Mb.) The other one (PIII/600, 384Mb) Install OK. live update OK. 1st scan (went to bed)was interupted because of fatal error, no other indication. History was that 2ns sys. was infected by Klezz and was first impos.to install NAV. after cleaning, NAV installed OK. Any suggestion??