Strange "Stop Error" problems with Windows 2k3. Apparently it was associated with having Juniper's SSL/VPN's Secure Application Manager (Split VPN application) being installed on a Windows 2k3 sever. Since removing Secure Application Manager everything started working OK, and there was no more hangups, blue screens, or RDP acting strange.

Event Type: Warning
Event Source: NEOFLTR_600_12359
Event Category: None
Event ID: 54
Date: 1/8/2008
Time: 6:38:36 AM
User: N/A
Computer: MYCOMPUTER
Description:
The description for Event ID ( 54 ) in Source ( NEOFLTR_600_12359 ) cannot be found. The local computer may not have the necessary registry information or message DLL files to display messages from a remote computer. You may be able to use the /AUXSOURCE= flag to retrieve this description; see Help and Support for details. The following information is part of the event: \Device\TcpFilter_NEOFLTR_600_12.
Data:
0000: 00 00 00 00 01 00 6c 00 ......l.
0008: 00 00 00 00 36 00 04 80 ....6..€
0010: 00 00 00 00 00 00 00 00 ........
0018: 00 00 00 00 00 00 00 00 ........
0020: 00 00 00 00 00 00 00 00 ........