Visio Newbie question

[rjones]

As a newbie to visio I have a strange problem. 

I created a file that has 5 pages. Each with a different picture of a server rack. Last night I saved and closed the file.  Today I can open the file  and at the bottom it says it has 5 pages (on page 3 of 5).  However I cannot open the drawing, nor insert a new page, and the print preview and print buttons (among others) are greyed out.  What have I done?  How do I get back to the drawing view.  BTW, view + drawing window is not there.

[Paul Herber]

Well, it's hardly a newbie (I hate that phrase anyway) question. Like other bits of software Visio can be put into various other modes for special purposes, the trouble is that nothing tells you that you are in the mode and it's not always obvious how you got there or how you got out of it, especially if some weird key combination got pressed accidentally. Can you attach a screen dump?