I like to play in windowed mode since I usually have programs in the background I want quick access too (read that as: things I should be doing instead of playing games). Unfortunately any time you double-click in game the window either maximizes or minimizes, depending on whether it's currently taking up the entire screen or not.
Does anybody know how to disable this? It really makes things difficult. I used to play with a Windows Bootcamp partition but needed to reclaim the HD space, and this isn't an issue with Bootcamp.