If you go to http://(camera IP address)/fview.htm, you'll get the camera web ui with an embedded flash based video player. This is the default view I get on my Chromebook but this url is usable in other browsers and operating systems as well.
Until recently this worked great. However, now the video is blank. Checking the page source and web console shows that the problem seems to be that the player is loaded from player.longtailvideo.com. And player.longtailvideo.com is not longer a valid host name.
I've contacted dlink support about this. They verified the problem and (surprisingly) suggested I post here since the developers read this forum.