Saving a Diagram
That’s obvious but sound advice, regardless of the software you’re using. It’s particularly good counsel if you use Visio 2007 for long periods of time or if you typically have several programs open while you work. Save your changes frequently using any of the following methods:
Click the Save button on the Standard toolbar.
Choose File, Save.
The first time you save a diagram, regardless of the method you use, the Save As dialog box appears so that you can specify a name and location for the drawing file, as Figure 8-1 shows. After you specify this information, press Ctrl+S to save incremental changes ...