How to spell check a protected sheet?

[Bill Rubin]

I have an Excel spreadsheet that I'm sending out as protected so
that certain formatting like data validation lists can't get
corrupted by the user. An unwanted side effect of this seems to
be that the user is now unable to run spell checking on anything
on the sheet, including fields which are total free form text
cells. Is there any way to allow spell check to be run of fields
that the user has permission to write to while having it skip
protected ones?

Bill