Just got my husband a Commando. Whenever the screen powers down and he pushes the on/off button to power the screen back up it switches to silent mode. He can change it on the touchscreen and the icon changes, but he still has to go into settings and uncheck silent mode. Screen powers down, on-off switch to power it back up, and the same thing, it switches to silent mode. I've perused the users manual and can't find an answer there. I'm wondering if there's something we're doing/not doing that is causing this, or if it's a malfunction in the phone. Thanks in advance.