I've encountered the following problem (Viso 2003 Professional):
- I created a (rather extensive!) database model drawing;
- I 'opened' one of the drawn entities on the shapesheet (e.g. using Edit/Open <entityname>, the entity is opened in a second window;
- I (accidentally) closed the first window (containing 14 pages of database drawing);
- I saved the Visio file;
Now, on opening the file again, the second window (the one containing the open entity) appears AND THERE SEEMS TO BE NO WAY OF EVER ACCESSING THE SHAPESHEET again!!
Visio DOES remember, however, that I was working on page 9 of 14, I can still delete pages, I can even use Search and Replace (..!??!)..... but just can't SEE anything. To say this is frustrating is an understatement...

I've tried opening the file in the 2007 version but no luck...
Can't imagine I'm the first one encountering this 'feature'...
Thanks for any help!