Hi Charlie Brown, I have never posted to you before but I have read some of your posts and have been silently cheering you on from across the pond. I know what you mean about the autumnal blues. I have a tendency to want to hibernate when the dark nights set in, my yoga teacher talked today about it and says its a natural process and a time for inner healing and natures way of making us slow down to reflect. Light boxes are supposed to be very good if you suffer from SAD badly. Anyway I hope you can find the motivation again,you have done so well. Knee problems must be a real pain. Good luck and take care.