I don't know if this is cross-posting, but it seems that you have a single problem. So it would be better if you started a single topic, instead of four.
http://arduino.cc/forum/index.php/topic,119001
http://arduino.cc/forum/index.php/topic,119005
http://arduino.cc/forum/index.php/topic,119006
http://arduino.cc/forum/index.php/topic,119007