| We recently dealt with an interesting issue that I would like to share, hope you enjoy. - Jason  Issue Summary  Customer reports that within their Citrix server farm (running on Windows Server 2003), when a user logs into or out of a session (seems more pronounced on logoff), ALL users connected to the server experience a ~5-20 second hang. The hang is described as follows:  
Application in the session (i.e. Outlook and Word) stop accepting keyboard input. When the hang subsides, the typed characters show up all at once. If applications are moved, they do not redraw Cannot click the start menu If the user was running performance monitor (in an attempt to diagnose), there would be a gap in the perfmon data that directly correlated to the hang duration  Customer has found that during the timeframe of the hang, Winlogon.exe (in session 0) is showing 25% CPU usage.
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