InDesign - Can't see purple alignment lines in CS6

Question

In InDesign CS5 I could draw a text box, drag it on page, and see purple lines that helped me align. Where did they go in CS6? I don't see them as I drag text boxes. Ideas?

Answer 1

ctrl-u (or cmd-u on a mac).

This toggles View > Grids & Guides > Smart guides. Smart Guides are the purple lines that guide alignment to the page, and the green lines that guide alignment to objects.

There are also tick-box options controlling what the Smart Guides do and don't align to under Preferences > Guides & Pasteboard.