Don't get spooked:-
NYSE - halted for tech issues: nothing to do with poet
China- Its a mess and will have profound wealth destroying effects on the markets in general but not necessariy POET which is a discrete story.
Greece - Europe:- ditto
Pinetree - OK maybe they need to sell down assets to raise cash. It's not personal to POET.
POET either you believe -and so be long. If not go and find another stock to play with
Happy days
Buzz