Hi,so I take it that none of the keyboard shortcuts work for you, Have you got the latest Intel chipset drivers for your PC installed,because after every new install of an OP you have to install them all again,now I am not saying this will fix your problem but at least it's another thing out of the scenario,if you want I can recommend a good program that I use all the time that I think is great for solving a lot of problems that people seem to have .