Arrow keys when cells locked

[sam]

Can anyone help. In a protected worksheet when the up or down arrow keys are
used the cursor moves to row 1 (if you use down it moves over one column; up
moves it back one column) instead of moving up or down one row only.

Also if you hit return the cursor also moves to row 1.

Without protection this does not happen...We are perplexed and would
appreciate any help you can offer

 

[Gaurav]

While protecting worksheet, check 'Select Locked Cells'