I am working on a 40 page magazine and suddenly after one of the spread the gray desktop is 10 inches long instead of 2 so I have to scroll really far to get to the next spread. Anyone know what I did accidentally and how to change it back, really annoying when scrolling through the document...
One way you might be able to navigate is to use open up your pages by pressing F12 and once you see your pages as thumbnails, you can right click outside of the display page area and click on "Panel Options" to change the thumbnail size of your 40 page document.
You may use that avenue to navigate. Or press "Shift+Ctrl+Alt+0" to view your "Entire Pasteboard".
Alternatively, you might try this: "Adobe InDesign * Managing pages and spreads"
Though it might be useful to print screen to determine the issue you're getting, so that others can narrow it down?