This is Excel 2000 running on XP Pro SP2.

I want my excel docs to each have their own taskbar button instead
sharing one single one.

If I go to Tools, Options, View tab and check the checkbox for "Windows
in Taskbar" and click OK, it changes the behavior to exactly how I
want.

However, as soon as I close Excel, this setting is lost. If I close
Excel, immediately reopen it, and go back to that checkbox, it's
unchecked again. Why on earth won't it stick longer than one Excel
session?

Any ideas would be greatly appreciated.

TIA