It never worked on my Linux system but did on windows. But, the same could be said for Dropcam.
Then it must something wrong with your system. Dropcam has worked everytime on OpenSuse 64 bit. Its shockwave-flash
With the new one, go with your mouse in the left down corner (popup), there are other Cams listed. ALL of them are working here, but not Daves.
Windows I don't have, can't check.