the bottom right hand corner of my iPhone creaks when pressed. i dunno if this is because of the cold weather, or what, but its really bothering me. i have never dropped it or anything so i don't know what the problem could be. its been like this since the day i bought it, except it wasn't as bad then. everytime i pick it up i hear creaking in at bottom right hand corner....can i get the phone repaired or replaced or anything? also, yesterday when i was on a call (i had 5 bars)...the call all of a sudden dropped and the signal strength went to 0 for a few seconds and then went back to 5. wtf is up with this? has this ever happened to you guys? im running the lastest update 1.1.3 i believe with NO hacks or anything. can i get my phone replaced for a new one? should i get it replaced? please help. thanks.