Hi there.... I wanna ask something strange happen on my SGW. I've just recently bought this SGW. Almost a month I bought this. When I press normal -> silent toggle button (on notif bar), usually, it after I press the button, the phone should directly vibrate to confirm the silent mode. But, sometimes, I still don't know what cause it, when I press the button (from normal to silent), the phone vibrate 2-5 seconds afterwards. Strange heh ? But it happen, although not always. Any idea ? Or anyone having this problem, whether on SGW or others ? Thx.