Had Razr 24 hours now.Lower back seems to be not firmly sealed - sometimes it 'clicks' - seemingly a less than tight/secure seal on the phone shell. It seems to come and go - migrates around bottom edge - now its not doing it at all. Sometimes lower right corner, middle or left corner. Gets warm (heard this itself is not unusual for 4G), but heat creates glue bubbles on back label.Anyone else having this - not sure if its a manufacturing defect or ???