I have about a 5 year old machine with 2.2 gHz processor, 1 Gig ram, and about 500,000 files to scan. I've been interested in NOD32 as a replacement for Trend which I had been using. When I found a beta which included a firewall I was really interested. So far, everything's running ok, but my scans are very s-l-o-w...... Trend used to scan everything in 1 hr 40 mins. I recently tried eEye's Blink which uses Norman AV and that took 2 hrs 40 mins. ESS is taking 3.5 hours for an in-depth scan. Part of my interest in Eset was it's reputation for fast scans with NOD32. So far, my experience with ESS has been it's the slowest engine I've tried. I'm interested in hearing whether others with past experience using NOD32 are finding the ESS beta slower. Thanks!