Problem Saving Word Docs

We are using GW 8.0 with HP2

I have one user whose changes in Word are not reflected in the Library.
The changes DO exist in a numbered file the Save / Checkout folder

This is Intermittent with only 1 user

She always (she claims) closes the document via File / Close. I think
we've removed the 'save' button from the tooldbar.

Amy ideas why she might be having these problems.

Steve