On June 8, 2011, many providers and websites all over the world will be
enabled for IPv6, the next generation of the Internet protocol.
It is said that more than 99.9% of people will have no problems during this test,
but experience may vary. Depending on your computer and network configuration,
you may not be able to access DLsite.com during the trial.

For more details, please refer to Microsoft.com.
[ Resolving Internet connectivity issues on World IPv6 Day ]

Thank you for your attention!