On the 77A flights I took, it didn't show the altitude/speed/tail wind or head win, which used to be on the old system. Also, the daily news channel never work! Or was that just me?
I was on 77A too, however i saw the altitute/speed/temperature but no head wind or tail wind either.
Worst of all, my entertaiment crashed for about an Hour !!!!
And finally , the FA reset it for me