Two questions about protected excel spreadsheets.

1) I have a protected sheet that I want other users to be able to spell check (Others who don't have the password). Help?

2) Same protected sheet. Cells in this sheet that are refering to other sheets (ie A5 has =Other Sheet'!E117) are still able to be changed, even if the sheet and the cell is protected. Is there a way to lock these cells down also? Again, the cell is locked and the sheet is protected.

Thanks