We have a strange problem on a SBS-Server (Win 2003 - SP2). Round about every hour the performance of the server is going down, it seems to stand still. After a few minutes everything returns to normal state and the event-log shows an Error (ID 7011): Timeout (60000 milliseconds) waiting for transaction response from NTFRS service I have followed step by step but the issue still persists http://support.microsoft.com/kb/922918 Any help is appreciated

Hi, NTFRS timeouts is a symptom of high disk IO/stress, which could mean problems with the disk subsystem (controller/Disk drives).We suggest to get updated firmware and drivers for the controller. Hope it helps! Regards, Jane