My users are having trouble when trying to save Word documents. When
a user opens a file from the SPS web folder, edits it and then tries
to save it, a message will pop up saying:

"The disk is full, Free up some disk space on this drive, or save the
document on another drive..."

Now here's the thing, if they first save the file to thier desktop,
edit it from there and then overwrite the exsisting file on SPS, no
problem. There is plenty of space available on the drive. Would
anyone have some solution on this? It seems to happen only with Word
documents. If doing the same thing with a .xls or other file type, it
saves fine.