I have an almost out-of-the-box install of 12.04 Precise. I am familiar with assigning and reassigning keyboard shortcuts, as I interact with my computer almost entirely through the keyboard.
I am new to the Unity desktop, and so this behavior is mysterious to me. The keystroke CTRL-p is ubiquitous in both the terminal and Emacs, so it's quite frustrating that as soon as I push the CTRL key, a maximized window resizes to whichever size it had previously. This happens across various applications.
What is the name of this shortcut (not the particular accelerator that may be assigned)? How do I disable this annoying behavior?