I was reading all about that in Microsoft, but I have not cluster, w3k, etc. Configuration: W2k sp4, SQL 2k sp3a. When I run Performance Monitor I find numbers instead sql counters. All others counter works fine, but for some reason I miss all sql counters. Any clue? Edited, just to refresh today. Luis Martin Moderator SQL-Server-Performance.com All postings are provided â€œAS ISâ€ with no warranties for accuracy.