I have today installed NOD32 trial having first uninstalled KAV. I am running Win 98SE on a '99 433 Celeron. I have a few days left to run on Kaspersky before either deciding to renew my licence there or buy a NOD32 licence. My main criticisms of Kaspersky were that it took about 12 hours to do a full scan, and it seemed to hog resources unpredictably and sometimes cause 10 second delays while browsing. Earlier versions of KAV5 were also unstable, but the latest upgrade seems to have ironed these out. I have noticed about a 30 second or more delay on shut down after Windows has dimmed the desktop and on start-up before the desktop has loaded - I get a black screen for what seems ages. Is this a normal feature of NOD32, and is there anything I can do about it?