First off, assume it's your machine and try to repair your internet connection. (In Windows, it's under "Network Connections" in the Control Panel. I've no idea where it is on a Mac.) You may also want to clear your browser's cache & cookie files, just in case you got a glitchy cookie/page in that program.
If you still don't see it, then wait 'til later in your Time Zone and try again... and if it still doesn't show up, then post.