Thanks for that, I'll have a hunt in the Yahoo groups.
After his week of eating less, Andrew seems to have picked up again. I gave him a homemade pasta, chicken & cheese puree and he loved that! Yesterday was mince, potato, cauli & carrot, that went down okay too. And he seems to be eating more of his breakfast now, so perhaps we're heading towards the point where we should add his third meal of the day.
Thinking about it, he had snuffles last week, so maybe his lack of appetite was caused by a cold.