Hi, I'm new to using smartphones and have just got a GT-s5360 Galaxy Y which I am fast growing to hate. I can't figure out how to use the key pad in call after I have navigated away from in during the call. For example, if I make a call and want to hang up while it is still ringing, if have have navigated away from the key pad screen (by accidently pressing the back button for example), when I bring up the keypad screen again, there is no 'end call' button/option. Likewise, if have navigated away from the keypad during a call, navigate back to it and want to start using an in call automatic operator (ie the press button 1 for department A, press button 2 for department B type), the keys are completely useless. Can anyone tell me what is going on ?