weird things showing up on menu bar

[Jon]

Every now and then I get these funny characters showing up on the menu, and,
they do not always show up.

Just now they showed up when I hit the '/' key.

See screenshot at
http://cid-b712073b3513eb8e.skydrive.live.com/self.aspx/.Public/excel-easter eggs.PNG

 

[Rick Rothstein]

That is apparently an XL2007 shortcut to replace the old Alt-<character>
shortcuts that Windows menus provide. The '/' key shows you the characters
that will take you to the item the character is 'over' by pressing that
letter. For example, press the '/' key and then the letter 'p' and you will
be taken to the Page Layout tab on the Ribbon.