Hi Guru (sound like a new member) This is the situation in one of my clients: Server: 2 Processors 3.2 HT off, 2GB RAM, 2 RAID 10 with 15000 RPM disks. Windows 2003 last sp. SQL 2000 SE SP4 SQL Server dedicated. Database: 100GGB. The application is installed in each work station. There is one process to take 5 minutes to run in any WS except one. In that WS the process run in 2 seconds. All WS has XP SP2 except that one with W98. If I trace the process when is running in W98 or XP, is the same query. That query in QA run in 5 minutes also, in my laptop. (XP, SP2, 3.2 HT off, etc). The networks guys said: all is ok. The guy besides the W98 has XP. I change the patch cord between both. Same result with XP and same result with W98. Now, I restore the database in my office (Pentium IV 2.8 GB, 500MB RAM, IDE disks), run the same process using the application from my laptop and run in 2 seconds, but if I run the query with QA, more than 5 minutes. But I#%92m alone, so is not comparable with real environment. All of me said: is network problem, but why run fine with 98 and slow in XP? I don#%92t post the query, because is a 3rd party tool and I can#%92t change a single line. But if you want to see it, let me know. Last: the rest of the process run in similar times in any WS. Luis Martin Moderator SQL-Server-Performance.com Although nature commences with reason and ends in experience it is necessary for us to do the opposite, that is to commence with experience and from this to proceed to investigate the reason. Leonardo Da Vinci Nunca esperes el reconocimiento de tus hijos, eso ocurrirÃ¡ luego de tu muerte All postings are provided â€œAS ISâ€ with no warranties for accuracy.