got a white phone and somehow it has already got some dirt or something down in the little tiny grove between the screen glass and the bezel. ive tried a toothbrush, microfiber cloth, and fingernail, NONE has worked. this is crazy this phone has gotten dirty this quick. never happend with the 4S. compressed air wont work either.. so whos got some ideas? or has anyone ran into this problem? its in the top right corner. idk if the phone came this way or if it has gotten dirty.