I start up Dxtory and then start up Counter Strike Global Offensive on Steam. The green FPS counter shows at the top left. Everything seems normal and when I press the hotkey to record nothing happens. The colour stays green and nothing records. I figure out I haven't set up a folder to direct my files. Easy fix right? Nope. I press the hotkey to record and nothing happens. The colour stays green and no video files are created. It simply doesn't start recording.
Please submit a Environment Information.
http://forum.exkode.com/index.php?topic=2.0 (http://forum.exkode.com/index.php?topic=2.0)
If you are using the Lagarith Codec try ticking the 'Always suggest RGB' box in options (the 'pen' icon right of the codec selection box). I was having the same issue, ExKoder mentioned in another thread that it sounded like a codec issue, and someone else suggested the RGB box fix in that thread. It worked for me. I hope it works for you also.