Right below the mouse touchpad is a left and right mouse button. In the
middle is a 4 way circle button thing. I can press it in all 4 directions
but it just makes windows go "bing". The online Acer manual doesn't say
what it is either.

Anyone that knows a good source for what it does or all of the blue Fn
buttons that are on the F1-F12 keys would be great!

Thanks,
--Cameron