[Phase 2] Can't change research goals / See objectives

[Andcarne]

Clicking on a new research goal, or clicking on an objective to view it does nothing. I expect that this is a mac specific bug since some of the windows users have mentioned viewing the objectives, and doing research.

Something that may be connected to this (and is a bit strange), is that if you hit alt to bring up the screens, then click, and let alt back up, it will zoom in. Rather strange behaviour.

Is alt set as a modifier key for zoom, for one button mouse users? If so, it might explain the problem.