Can't see the 'Buy' icon after creating a ringtone

When creating a rington on my laptop, which is where I have my primary library, I cannot see or click on the 'Buy' icon. I am unable to drag anything on the screen to move that box so that I can buy the ringtone. When I do this on a different pc I do not have this problem, but I need to use my laptop since one cannot evidently load a ringtone from one pc without clearing everything else on your iPhone. Help!