Demo - testing stopped working

 

I have a demo account of MT4. I ran a couple of tests on indicators and EAs OK but now tests do not go through. I get the ''Waiting for Update" message, shortly followed by the squeak of failure. I am logged on and in visual mode. I have tried various data qualities bar durations and test periods. 

I am amazed that no effort is made to advise the user as to the reason for the failure. Am I presumed to be omniscient, or clairvoyant?

What have I missed?

 
As far as I recall the testing end date must not conincide with the current day's date.