Running a CITRIX presentation server farm, version 4.5.6 on Windows 2003 sp2.

In the CITRIX Access Management Console, I sometimes get a session that shows it's in a down state - but has none of the normal info associated with it (user name, applications, client name, idle time, etc...).

It does say which servers it's on, so I check out that server's terminal services manager. I can see the down session but cannot reset it. I get:

(Error 7024 - the requested operation cannot be completed because the terminal connection is currently busy processing a connect, disconnect, reset, or delete operation.)

So I go to the task manager and look up the processes running under that session id. I see it's one of my published apps, but when I try to end the process - it simply does nothing and the process remains.

Any way to get rid of these sessions without a server reboot?