mail transfer, Kmail, fetchmail, procmail....

Really do not know how but since I changed something in the setup from ADSL to dialup I am sometimes flooded with double entries of my mail. I am using Kmail 1.9.1 on KDE 3.5 on Suse 9.3. In Kmail setup I have inserted that it should get the mail from my ISP and I had an entry that it should also get the mail of /var/mail/root and of myself /var/mail/cons. Assuming that I have one mail transfer agent too much I disabled the /var/mail/cons in the Kmail setup. The double entries have stopped but in the /var/mail/cons I have now 99 unread messages. Looking through them I have read and received them all so there are my double entries. There must be something amiss with my email transfer. And no idea where to begin to sort it out.