So after finally getting a new computer I bought Sins of a Solar Empire. I did the tutourials then went on to do my first actual match. Alas something keeps happening. After a while I'll be unable to select units. The only way I am able to select units then is from the Empire Window/Tree thing (that lets you select the colony ships, etc).

Long story short after so long into a match (I think), I am unable to select ships by clicking on them or dragging the box over them.

Help me please D: I would really like to enjoy this game.

(Note: I am using Vista Home Premium 32bit)

Xfire was causing this bug.