Windows Voice not being detected by Mic

Having a issue with my headset with ts3.

I am running the latest drivers with my Asus Xonar D2X pci, the headset im using is a sennheiser PC161.

http://www.sennheiser.co.uk/uk/home_en.nsf/root/private_headsets_pc_pro-gaming_500926

Usually what i have experienced is that i join ts3 and cannot talk and can hear fine. I try voice test but nothing is being picked up.
Then the next day i will come on ts3 and my mike will pick my voice up fine.

I have tried the headset on a laptop and works fine, so im wondering if its a issue with my software.

 

its might be issue with your software.

 

A friend has said to reboot and update the drivers which has fixed the problem for him.

 

Have you had a look in windows sound setting making sure that the deafult etc

 

also checking the level is not set to 0, like mine was :/