That seemed to work - rather than get home from work and go straight back to my computer, I took it easy tonight. Rested a bit, listened to music (F&TM's The Burning Season - the first album to completely hijack my CD player in months, and really very good...) and recuperated.
As a result, my brain is now more or less working. This is good. :)
As a result, my brain is now more or less working. This is good. :)