Talk:V1.0.0.145/@comment-112.205.23.49-20120823123144/@comment-4499980-20120824214537

Try repairing your client. It usually fixes any issues I have with the install.

On your launch window (the one with the PLAY button and the "news" feed), click on the icon at the top right that looks like a gear (right next to the _ and X). Then, click "Repair" and "Yes" and the repair will begin. It should automatically detect any errors and repair them.