Thanks, IdeasGuy
I've tried what you suggested, but it didn't appear to cure the problem, although I've now noticed that it only seems to be the three entries that I mentioned that are affected - the three monthly payments of Council Tax; all other transactions appear in the correct date order. Can you think of any likely reason why this should be so, because it throws out the 'running' balance figures ? Is it possible, for example, that the problem might disappear if I deleted these three transactions are re-entered them ? (Not quite sure at present just where to go to do this, anyway).