Pages won't let me type!

Are you in Layout mode trying to type on a nonexistent text layer? In layout you can only type in a text box or shape.

Walt

Has it worked before? When did the problem start? Have you installed any third party application near to the problem starting? Have you updated Pages and Snow Leopard to the latest versions? Combo update? anything else just before the problem started??

Create a new user account and try Pages in that account. If Pages does work as it should you have a problem in your old account. It could be the plist file or something else
If it doesn't work in the new account either it is Pages that isn't working and you have to delete iWork and install again.

No Ben, There are two types of documents in Pages, word processing or page layout. It tells you which one you have if you read to the right of the document name.
Show Layout is something else.
When you pen a new document through the Template chooser you'll see in the left column that the templates are divided in Word processing and Page layout and maybe My templates for those you have created yourself.

Walt, I always forget that possibility. Could it be that I usually use the Word Processing document and not the Page layout one??

No, there ins't any way to change them. You have to start anew or copy page by page (copy thumbnails of the pages and paste into the WP document.

I am glad the problem got solved!