Does the MacBook's Pro 13 inch (mid 2010 model) mini Display Port output support the DisplayPort 1.2 Multi Stream protocol? The graphics card on this model is the Nvidia GeForce 320M and I know this port has audio out capabilities. Does this mean it's 1.2 version and does this in turn mean that it will support two daisy chained displays? I would like to connect this laptop to two dell U2413 displays that have daisy chain capabilities between them. Thank you.