Just another day using my awesome DHD... and what do you know? My entire sms / mms inbox has disappeared. Not a trace; it is as if I have never sent or received a text message yet. Thinking my phone may have 'lost' the micro SD card, I check, and yes my photoes and videos are still loading. New SMS are compiling as normal. Perhaps I hit the internal limit and it cleared the memory. Setting are factory standard.