|OK Guys. Thanks for your help. I think I should leave it OPEN for the meantime.|
I THINK what I said was the cause, but not 100%. And as with other things, it may take a while to be sure....and even then not certain. But it WAS only that one address, so far, and although I email them now and then, it's not all the time. And they were a bit suspicious and irritated by it, so I can't enlist their help too much.
If is IS their end, they'll know ! I just hope they tell ME !!