Hello everyone. I purchased an iMac 21.5" recently and unfortunately it came with a dead pixel(black) and I can see some hot pixels, also. Can these hot pixels be dust though? In top-middle part of the screen(where iSight is located) the glass that protects the screen actually has a gap. I mean, in the right and left parts the glass seem to be more stuck than in the middle part. Actually I can even put my nail inside the glass and I suppose, it can be removed if a lot of pressure is applied. Are all iMacs supposed to be like that? Maybe dust gets through there so that's why I see these "hot" pixels. Do not tell me to remove the frame and clean it up, it's one day old. I just want to know if it is supposed to have that small gap on the top center part. Thanks in advance!