Closing all worksheets in excel 07

I have just upgraded from 2003 to 2007 office at the same time as
getting new computer with Windows 7.

I have eventualyl located the commands on the ribbon but I have one
problem

with Excel 2003 when I clicked on the X in the top right hand corner
of Excel it closed all the open workbooks.
I could use the X at the top right hand corner of the actual
worksheet to close cuurent one only.


With 2007 when I use the main X it only closes the current and not all
open worksheets

According to help it is supposed to close all open worksheets the same
as 2003 but this does not happen.


Has anyone got any ideas how to fix this or is it a new " feature"

DJT