My Corsai Raptor M45 has just recently started scraping against the surface that it sits on for some reason. I've looked for any gunk or dirt and it seems to be pretty clean. The feet are also secured in. I've tried sanding down the edges and it helped just a little bit. It's scraping from the back of the mouse where you would rest your palm but i just can't figure out why it is happening or what's causing it to happen. I also bought this from Newegg. Any help or ideas as to why this is happening would be awesome. Thanks.