Version of Word? If Word 2003 have you activated.
As for typing in documents on diskettes: Short remark: Don't!
Longer remarks: If you want to be able to use your documents, when working
with in Word, act as if your floppy drive does not exist. (This applies to
CDRW/CDR drives as well.)
Don't use Word to:
Open a document on a floppy
Print a document on a floppy
Edit a document on a floppy
Save a document to a floppy (not even a copy)
Word regularly trashes documents on floppy drives!
Instead, work on the document using your hard drive. Copy it back and forth
using Windows.
I know that for some with shared computers (libraries) this is a tough
prescription. All I can recommend for that is to use a brand new formatted
disk each time you save and don't do any editing.