MadEngineer: I'll have to start a new thread, but I was using . I'll try my laptop when I get some time after work.
I found I could ping -6 the router, load the [ipv6] address of my router to get the web interface and could also ping my wan ip from a testing site but no ipv6 traffic was being forwarded from my pc out. Ping -6 eventually started resolving but I had errors (edit: timeouts) on the pings. I also tried my mikrotik (in place of the genius) which itself was unable to ping out on ipv6 despite getting an ipv6 addresses and a route. My pc was getting an ipv6 gateway on the mikrotik (because I'd set up an ipv6 dhcp server), but not on the genius - is that normal? My pc had the same results with either the mikrotik or the genius.
So, my windows 7 laptop is in the same boat as my windows 8 desktop as above.