Oh, and as a side note, I've never used a case for my phone. My first thought was the invisible shield on the screen, but taking it off didn't change anything. I hadn't updated any apps recently, and most of the apps I have installed are fairly standard, with only beautiful widgets and GDE running all the time. I also haven't used any plugs that didn't come from the manufacturer. The first time I noticed it, however, it was plugged into my dock.