I have now deleted EVERYTHING and installed fresh.
Now at least it starts
doveconf -n:
managesieve_notify_capability = mailto
managesieve_sieve_capability = fileinto reject envelope 
encoded-character vacation subaddress comparator-i;ascii-numeric 
relational regex imap4flags copy include variables body enotify 
environment mailbox date index ihave duplicate mime foreverypart 
extracttext
namespace inbox {
   inbox = yes
   location 
passdb {
   driver = pam
}
plugin {
   sieve = file:~/sieve;active=~/.dovecot.sieve
}
ssl_cipher_list = 
ALL:!aNULL:!eNULL:!EXPORT:!DES:!3DES:!MD5:!PSK:!RC4:!ADH:!LOW at STRENGTH
ssl_options = no_compression
ssl_prefer_server_ciphers = yes
userdb {
   driver = passwd
}
-----------------------------------
looks like PAM is already configured.
I CAN'T LOKIN USING PLAIN TEXT. HOW DO i TURN THIS OFF??
-- 
  --
Best Regards, Walter Ulmke
Ulmke Machine Tools,   48496 Hopsten,   Germany
Tel. ++49/5458/93345-0  Fax. ++49/5458/93345-45
Mobile: ++49/172/5357999   eMail: ulw at ulmke.com
Dipl.-Ing. Walter Ulmke e.K. AG Steinfurt HRA 4384