with your selection tool go into the tool settings and check 'camera based selection'
i assume the placements for the tool settings button option is the same as it seems to always has been, it's the middle button on the top right corner (the three buttons show the attribute editor, tool settings, and channel box)
that's a "Ch" pronounced as a "K"
Computer skills I should have:
Maya, XSI, Photoshop, AfterEffects, Motion, Illustrator, Flash, Swift3D