Shared workbook only saving cell-colour

[Stefan du Plooy]

On one of our shared workbooks only updates the formatting of
cells..not the values. Even if we input a formula, it will update the
results from the formula when viewd by another user...just not any
text that gets typed in.

This problem doesn't happen to everyone though...we've got 6 people
working in the workbook, and happens to four of that 6. Also when the
2 makes any change only they can see the changes, the other 4 don't
see any updates,not even formatting.

Any ideas???