I searched the board and found this advice for turning off the Excel
clipboard permanently but it keeps coming back.

"The dword registry entry AcbControl under
HKCU\Software\Microsoft\Office\11.0\Common\General , when set to 1, to
supposed to disable the Office keyboard. This is for Office 11."

I am using Excel 2003 SP1 on a network. Is it the network that is
causing this fix to not work?

Any advice is appreciated.