Citrix Server Reboot

I have a Citrix Server which is the license Sever for a small Citrix farm of four servers.  Over the weekend the server rebooted itself.  On examining the server system logs I found the following event:
Event ID: 1074
The process IMAAdvanceSrv.exe has initiated the restart of computer CHAOS on behalf of user NT AUTHORITY\SYSTEM for the following reason: No title for this reason could be found
 Reason Code: 0x0
 Shutdown Type: restart

Can anyone shed any light on this.
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Scott AndersonPrincipal Support EngineerCommented:
Sorry, I might be throwing out the obvious here...
The IMAAdvanceSrv.exe is a Citrix component that allows Citrix to interact with the host Operating System.  Just reading what you've got above, it sounds like there's a scheduled reboot (inside Citrix) on CHAOS, or one of your users has elevated privileges and rebooted the system (although it should've cited the user instead of the process.).

Any other events in your server logs before the reboot??

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atocltdAuthor Commented:
Many thanks for the response.  There was a scheduled reboot setup in the properties of the server in the Presentation Server Console.
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