12-10-2012 03:04 PM
If you have volume up and down keys on the keyboard then give try those keys and see what happens.
You might also try unchecking hide inactive task bar icons depending on the system that you are using.
HP DV9700, t9300, Nvidia 8600, 4GB, Crucial C300 128GB SSD
HP ENVY 17t Touch,i7-5500u,16GB, 256 GB SSD (on loan)
HP Photosmart 6520
HP Touchpad, HP Chromebook 11
Custom i7-5930k, X99, 16GB 2800 MHz DDR4, Intel 750 PCI-E SSD, (2)Samsung EVO 840 SSD, Corsair HX650, EVGA GTX 760TI
Windows 8.1 UEFI mode