RS>> I use their modem?? That seems weird to me but what do I RS>> know....
BR> You can always get a tunneled IPv6 block free from HE.net and tell BR> your ISP to piss off. That's what I basically did and I've been fine BR> since.
That's what I've done, but it results in a lower bandwidth over IPv6, and extra hops. The bandwidth is so much lower that browsers tend to fall back to IPv4 (Yes I know there is a tweak to stop this behaviour in Firefox, nevertheless my IPv6 connection is inferior to IPv4).