hello everyone , i have a few ?s i bought a new 5200 about 3 months ago and i have been using it a good bit . as i was editing the other day i noticed spots on my photos ,the lens is very clean so its not dust also the other night i was using the live screen and it started getting what looked like pixel drop outs . has anyone else had these probs pls let me know ... and of course i did not get the ex warnnty :/