M-Track Plus Line input signal, no playback

Please help! I have an M-Track Plus running on windows 7 x64. The problem is I can't get any playback using my guitar and mic line input, the m-track plus although is giving me signal however on my computer under "Settings", "Audio", "Recording", it is giving me no signal. I have followed instructions on the manual. so it is set as default. They are connected to my KRK Rokits and playing music using my Daw or anything else works fine.

Thank you for your time!

Ps sorry about my "Profanity" from yesterday.
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