Bought this phone specifically for the HDMI output function, but immediatelly following latest software update (approx. a week ago) I now get a blank screen on my TV when streaming a video (from Jetflicks for example) and I get picture but no sound when playing downloaded videos using HDMI output/cable. Anyone else having this problem and does anyone have the solution? I've read about the same issues following a Froyo software update last year. Please help! thx.