Apache OpenOffice (AOO) Bugzilla – Issue 17751
The close window icon "X" dispears when opening more than 1 window
Last modified: 2003-08-28 05:19:29 UTC
this is not a bug. The closer "X" is intended to close the last document window, and open the so-called backing window. This window, by definition, exists only if there is no document open. So it doesn't make sense to have the "X" in case there is more than one document open, because in this case, the backing window doesn't make sense.
closing invalid
*** Issue 17748 has been marked as a duplicate of this issue. ***