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Computer Management Console hangs when "Sessions" folder is expanded


On one of our organisations Windows 2003 Std Ed SP2 DC's I have a problem when using compmgmt.msc.
When opening up the console and navigating to System Tools>Shared Folders>Sessions, to display currently connected users/computers, the sessions are populated immediately without error, when displaying IP addresses in the "computer" column. However, if I then expand the "Services & Applications" node to display the sessions with the DNS names of the computers connected, the console displays the first handful of users, then the console stops responding.
This behaviour has only occured in the last 24-48 hours, and I'm sure no updates have been applied to the server.
My initial thoughts were that this may be a DNS problem, but I've not found any evidence to support this when looking through th DNS entries in the Event Viewer, or viewing the A records for the zone.

Any help with this issue would be greatly appreciated.
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I think I may have fixed this myself.

In Compmgmt.msc, goto file\options\delete files

This clears the console profile settings previously retained.

Close, then reopen the .msc and the sessions folder expands immediately, with both IP addresses and DNS names when "Services & Applications" node is expanded.