I just installed Aero Glass on 8.1 and now have a white watermark in the lower right hand corner of my screen. How do I get rid of the watermark. I don't mind making a donation but there is nothing on the site that addresses the issue of the watermark. Something comes up that says, "this is the free version, and asks you to copy your machine code to the clip board...so I assume there is some way to get rid of the mark by paying...but again, I did not see how.