The recent R4.10 release has solved the incompatibility issues.
Here are the supported browser and versions with the R4.10 release:
· Microsoft Internet Explorer 8 to 11
· Firefox 3.0 to 27.0
· Chrome 19-33
It can be downloaded from Cisco.com when you have an account.
Releasenotes:
http://www.cisco.com/c/en/us/support/video/digital-receivers-decoders/products-release-notes-list.html
Jordi