Windows 2000, Windows XP, and Windows 2003 all have a Task Manager. It can easily be reached by pressing CTRL+ALT+DEL, and then clicking the Task Manager Button.
I have seen client’s computers that do not have the close button, that is the boxes with the line, box, and X in the top right-hand corner. Without this, you cannot close the Task Manager Window, and it stays on top of anything else on the screen. Re-booting seems to be the only way to close the window, but if you bring up the Task Manager again, it is still missing the buttons, and the tabs.
Various web sites I found in researching this suggest Registry edits, and all kinds of other complex solutions.
There is a very simple solution that I figured out all by my lonesome, but is hopefully in the MS Knowledge Base (If it is, it is not very high on the list of Google searches.). The solution is the same thing that causes the “problem” in the first place.
Double-click below the gray line that runs across the screen below the menu and above the tabs will cause the “problem”. Double-clicking in this same area gain fixes the “problem”.
The following screen shots illustrate the before and after when this “problem” is caused.