If you're Sumdog games aren't loading properly, some of the files needed for games might be blocked by your network.
Because so many people use Sumdog, we use lots of servers to provide the files you need. If any of the files can't get through to your computer, the game won't be able to load, but you won't see a warning for this.
Sometimes, this is caused by network filtering software. You can whitelist Sumdog's servers, though, so that your firewall always allows them to communicate with your computers.
To do this, you'll need to whitelist "*.sumdog.com". The asterisk is important - it means that any severs with a "sumdog.com" address are permitted. Your IT administrator will be able to help with this.