So. This started happening today. I'm in Belkarth doing my writs. And all of a sudden the screen went blue. Not a blue screen of death - just like the world went completely blue. Could still chat, still hear sounds - and from the fact I could hear me shooting my bow - I gather my skills were still working. could even access the menu... but the background was just ... well... blue.
This has now happened three times this morning in Belkarth.