I have had my case for my about 7 months and it is starting to fall off constantly. I have only pulled the back piece off about 3-4 times and it seems that every time I do, it does not stay on as well as it used to. I had a case for my BB Pearl that I used to beat the daylights out of and it is still working today (about 3 years old!) and my wife's case for her Eris is snug as the day she bought it. Has anyone else seen this with the Innocase?