Suggestions.
1) Clear you internet cache. The internet cache stores stuff locally so it doesn't have to be downloaded unless it changes. Sometimes a local file will go bad and your loading will hit that bad file over and over.
2) Reset your Internet connection. Each device -- modems, routers, pc's etc -- between you and the box your service provider provides acts as a router and routes things to your screen (technically it routes things to the last device in the line and a program in that device "routes" it to your screen). So if one of them is having problems, restarting it might clear up those problems. Of course, if you are having this kind of a problem it would probably show up in other sites, so it's a long shot but easy to do. Just turn off all the devices between you and that service provider box, then turn off the service provider box for 10-15 seconds. Turn it back on, wait a minute or two, and then do the next device, working your way back to the PC, Mobile, whatever. Turn it back on and see what happens. WARNING: Anybody using the Internet in your home will be interupted so do coordinate lest you end up in divorce court and I get blamed, LOL.
3) Make sure all your software is up to date and if you added/updated anything recently, consider if that update may have interfered or gone badly. Returning the system to the previous state before the add/update would fix this. This is especially true if you use flash or update the browser you use, but it can occur with just about any program or app you install. So what changed, if anything, and can you reverse the change? If so, do so and see if it helps.
Well those are the "big three" I'd recommend.
AJ