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No volume bar control on screen -Lenovo SL500,windows 7 ultimate
Hello everybody,
I am new on this website .I recently installed a windows 7 ultimate on my laptop. Lenovo SL500 and I can not control
the volume from keyboard for USB speakers and no bar control volume on screen.Previously I had Windows XP and it work.
If someone out there could help me I really appreciate it.
Thank you.