You don't seem to believe us
Of course I believe you. I'm just trying to give you as much information as possible.
Arduino stopped working again last evening. Could not get it going. Left it on the table over night.
I observed something new. Maybe it's a clue to someone:
The arduino works the 1st time it's connectede to power. If I cut the power on the working arduino and re-attach power, it no longer works (The program does not run).
So, to me it looks like something prevents the program from running. What could be the cause?
However being pragmatic and seeing that you can't find out what is wrong then get another board.
I have, but I would REALLY like to know what's going on with the old board.
Just to make it clear: All the comments in this thread are MUCH appreciated in case I come off as being unappreciative!