Mic is going into StereoMix of Audio

Alright um.
I guess this isn't the greatest use for a first post but uh. Hi.

I was having some issues with my sound card (I'm assuming it's my sound card.)
I've always used a USB mic and headset until it broke the other day, and I bought a Logitech G230. The audio works absolutely perfectly, but I'm stuck using my webcam mic because the G230's mic plug thing goes into the stereo mix of the computer.
Okay, I know this is like really awkward to explain.
I will post some pictures
v



My sound card is an Asus Xonar DSX.
Can anyone just confirm that this is a sound card error?
I know it's not the mic because the mic sounds perfect in stereo mix, and works on other computers perfectly.
I also tried another mic and it's the same thing.


Tech Support Guy System Info Utility version 1.0.0.2
OS Version: Microsoft Windows 7 Professional, Service Pack 1, 64 bit
Processor: AMD FX(tm)-8350 Eight-Core Processor, AMD64 Family 21 Model 2 Stepping 0
Processor Count: 8
RAM: 16381 Mb
Graphics Card: VNC Mirror Driver, 4 Mb <--- Also NVIDIA GTX 670 2gb
Hard Drives: C: Total - 1907626 MB, Free - 1139187 MB; G: Total - 99 MB, Free - 69 MB;
Motherboard: Gigabyte Technology Co., Ltd., GA-970A-UD3
Antivirus: None