Can not get music from

Question

Can not get music from my pc to my phone (G800). Have followed all instructions and have got as far as "sync list"...but the sync list button is not letting me click on it. When I connect the phone, an info box comes up but the only instruction on it is for uploading photos from the phone to the pc (which I have done successfully)Am going mental with this now as it's obviously something I have done and I am not computer savvy enough to figure it out....HELP!!!