I have a keyboard which came with my computer. Along the top it has quick launch buttons etc. They all work as does the volume button. But just until today the volume button would display a little bar on screen when you pressed it showing the volume. However today it does not. Whats more when i go to the keyboard properties where there was originally a buttons tab there is one no longer. Any ideas?
There might be extra programs which let you use the extra buttons. Try looking at manufacturers site to see if you can download anything additional.