Let`s Sing its pissing me off!

Hello everybody, I just bought Lets Sing in steam, and I have some issues with the microphone thing, the fag game is not leting me play when Im in the song selection, a stoopid notificacion tells me i must connect my microphone when its already connected, I just wonder if anyone have the same problem or bought the game with good results or know anything to do to fix it.

I`m using Tritton AX 720 connected via USB, also tryed the mini jacks, inside the game seems to work fine, but still cant select a song.

Screenshot problem: https://fbcdn-sphotos-g-a.akamaihd.net/hphotos-ak-ash3/t31/1912167_661850467212446_234167672_o.jpg

Game: http://store.steampowered.com/app/268260/

Thanks in advance.