The best advice under the stress of abject frustration is to cool down! That may be challenging
of itself, but while you are angry or annoyed your ability to seek out a solution is somewhat
undermined. A cool head clears the way to finding the answer you are looking for. Just remember,
every problem has a solution there is a good chance that someone else has found it
even though you can't right now. That will change with time, patience and learning.
Now that you have cooled down a bit, please refer to
the Samba Checklist
for a process that can be followed to identify the cause of your problem.