I recently upgraded my SD card from the 8gb to a 32gb. Transferred all the data, everything seemed to be working ok, besides my ringtones all disappearing. I kind of expected that though. So i fixed everything and reset them to what i had before. Then, after a while i noticed that, every time i plug my phone into my computer, whether it be for Windows Media Sync, PC connection or just to charge, it erases all my ringtones and notification sounds. Sometimes, it'll completely erase them and say "Unknown ringtone", in which case, i get a silent ringtone. Or sometimes, it'll reset it to a completely random song that i have on my phone. It's very annoying. Has anyone else had a similar problem or have any ideas as to what i can do to fix it? Could it maybe be an app that i'm running? Also, keep in mind that i'm kind of a simpleton when it comes to Android. I haven't rooted my phone or done any crazy customization.