Hello! I have a 3GS and have no had any problems with it, until now. When I am in iTunes looking through the music or ringtones, I try to click on it to sample it, but a pop-up always comes up now saying "Could not play preview". I use to be able to preview it before. If I am on 3G connected to iTunes it lets me preview it, but not on WiFi, which it did before. If anyone knows anything about this please help me!! Thanks bunches!