It was previously working for me also, but suddently both of my cameras went black at the same time. I think it was when MyDlink changed the live view to a smaller size and with som icons on it.
I have tried with different computers, different versions of IE and also with FireFox, and they all show a black screen.
How can I log on to my cameras without MyDlink? I have a static ipaddress, but cannot access the router and implement port forwarding, or anything like that, from outside the local network, which is 2000 km away.