Thanks,
i was worried i may have affected it
by trying to use another PC.
Tried again this morning after i rechecked the plug,
that occured to me last night - that it might be crooked,
or even upside down. But when i looked the plug was fine
in its hole, didn't look like it would go in upside down,
or crooked, unless the plastic was broken.
still getting nowhere.
John