If you save a MacDraw Pro document to a Novell file server and shortly after save it again, you may see the alert: "The document on disk has been updated while you worked with it. Do you still want to save your changes?"
This is an erroneous alert due to the way Novell handles saving of a file. Although the file was initially saved, the Novell software may not update the save time of the file for a few minutes. The message can be ignored. Click OK to save your changes.