I just got my m17x r4 in today, yay. Sadly something about it is driving me nuts. there are two small greyish marks on the screen visible on a white background. Either dead pixels or dust. Now.. should i try and disassemble to clean if its dust, which it may not be, it may be a stuck pixel. Or demand and exchange? I dont even know if that warrants an exchange. Any one know details on this or had a similar issue? Thanks.