My PSP has ALOT of dust under the screen and even though it is under the warranty, Sony won't help. My stupid Pelican PSP cover thing scraped up my PSP, so Sony says it has to much "neglect" and I've taken perfect care of it and never dropped it. Since I have two top-of-the-line air cleaners in my room where I keep my PSP(dust allergies), I know this is Sony's screw-up. How can I get the dust out? What caused this and is my PSP defective? Thanks in advance.