The Recently Used Files list in Office apps is behaving oddly. The number of
items in the list fluctuates from day to day. Yesterday several files were
opened in Excel, but today there are no files in the list even though it's
still set at the default to display 4. I know the settings can be different
depending on which product you are in and what the MRU is set at for that
product, but this is within the same office product with no changes to the
MRU setting.

I've had a couple of staff report this issue but haven't found a resolution.
We are using office xp SP3.