Clean XP install.

If I login to workstation only, Task Manager will run as normal. Right-click
taskbar and pick, Ctrl+Alt+Del and pick....
If I login to the network, Task Manager will only run if I right-click
C:\Windows\System32\taskmgr.exe, select "Run As..." and give a username and
password. It works both as the workstation Administrator and the current

After asking around, know one here running XP can run taskmgr the normal
way. Even thoughs using client 4.91.0.

The servers are running 6.5sp5.

Any clues? Thanx.