Unable to change volume when GB is enabled

[Griffonzo]

Well after getting a Creative Soundblaster Xtremegamer sound card about three weeks ago, I finally decided to fire up the forgotten Game Booster I had. Though when I tried to change the volume in and out of game, it would not budge. I checked to make sure none of the Creative components were disabled and it still pursues. I do have the latest drivers and have switched the modes from entertainment mode to game mode. Anyone care to shed some light?

Also, I am still able to change the volume by clicking on the speaker icon and moving the lever manually, just using the buttons on my keyboard has been the culprit.