Interesting morning

First the computers were nearly unuseable thanks to condor jobs going nuts and hammering the AFS server into the dust. Now I'm getting a weird visual effect: blurred vision with a jagged prismatic boundary. I've had this a couple of times before, and a quick bit of research suggests that this is related to migraine auras (though fortunately I've no headache). Makes it pretty doggone hard to read/write, though.