Ribbon and menus disappear in Excel 2007

[StevenWheeler]

My ribbon and menus disappear completely from the top of Excel and the only
way to get them back is to close and reopen.

It takes a variable amount of time for this to happen, but it happens every
time sooner or later.

Any suggestions would be appreciated.

Thanks

 

[StevenWheeler]

I believe I have found the culprit.
I am using the MicroSoft Virtual Desktop Manager (multiple desktops are
essential to me) and every time I switch from one desktop to another I loose
my ribbon and menus in any Excel window I have open.

I hate to give up the ability to have multiple desktops, but the other VDMs
I have found are not as straight-forward.