Apologies for this very basic question! I have my SGS2 set to go to sleep mode after 10 mins. I have also set a password, so that I need to enter the password to wake the phone up. If I get a phone call when in sleep mode, I cannot answer the call without entering the password; by that time the caller has rung off. In sleep mode, I am alerted to an incoming call with the 'answer' (green) and 'end call' (red) buttons being shown, but the 'answer' button doesn't respond. I have tried pressing it, dragging to to right, and lightly swiping it to the right, it still doesn't work. Is this noormal, or is it a fault with the phone? Is there something I should be doing to get over this? Any ideas greatly appreciated.