Click it in where it is sticking out. When I take the back off and put it back on that happens but I just have to push down that area and it clicks in.
Leaving your GPS on drains battery.
Truth is: GPS is only used when you open an application that requires it. You can leave GPS toggled on at all times.
The display version of the HTC Thunderbolt that I checked out before buying mine had the same problem. Just put both thumbs on it and press, it will snap into place. At least the display version that I handled did.
Mine did that once the other day. I finally had to push down really really hard to get it to click, but now it's fine.
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