Safari wont load wikipedia

Hello All,

Perhaps someone can help me...

As of yesterday Safari won't load Wikipedia pages propely. Sometimes it just hangs (Safari cant open the page), sometimes it partially loads etc.

This behaviour is occurring on my Mac mini (late 2012), MBP (mid 2009), iPad 2 and iPhone 4s.

Wikipedia loads no problem on my girlfriend's Windows 7 laptop.

I have a 60Mbps broadband connection. The Mac mini is wired, everything else is wi-fi.

On the iPhone I have tried loading Wikipedia via 3G and it still doesn't work.

I have followed the instructions in this thread, but it didn't solve the problem.

Google Chrome loads Wikipedia pages, no problem.

Wikipedia is the only webpage I am having trouble loading (that I am aware of, obviously...)

Any help greatly appreciated,

Thanks

Mike