I purchased the HTC DESIRE about a month ago, and I recently have been having problems (strangely just at night) with it shutting itself off and back on repeatedly. It does constantly for up to an hour, and then when I wake up in the morning it's ok again. I was struggling with the issue tonight and I took the back of the phone off to have a look, and I saw that the stickers on the battery and the phone itself are showing water damage. This baffled me because I've always kept the phone in a case and absolutely never exposed it to water, not even steam from the shower. What could have caused this?? I realize that wattery damage voids the warranty and my insurance, so is there anything else I can do?