To check the file system
Symptoms: The Memory application in the System application group shows
too much (over 2 megabytes) or too little memory, even if you have just
removed some documents, or the communicator applications crash when
opening a document.
Key combination: Shift-Tab-left arrow
Caution: If there are problems in the file system, the corrupted files will be
removed. If there are no problems, this operation does not affect any
documents or settings.