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,i7-6500u,6GB, 256 GB SSD (on loan)
HP Photosmart 6520
HP Touchpad, HP Chromebook 11
Custom i7-4790k, Z97, 16GB 2400 MHz DDR3, Intel 750 PCI-E SSD, (2)Samsung EVO 840 SSD, Corsair HX650, GTX 980TI, Corsair H75 water cooler
Windows 10 Pro in UEFI mode - production system
Windows 7 and 8 in UEFI mode - test systems