This is probably a stupid noob question, but I have it none the less. 
I have the HTC Inc. When its plugged in and someone calls me or I get a text, it is a different ringtone and notification sound from the ones I set. Is this normal because of the USB/DATA connected to the computer?

I have the HTC Inc. When its plugged in and someone calls me or I get a text, it is a different ringtone and notification sound from the ones I set. Is this normal because of the USB/DATA connected to the computer?