Receiving messages with Linpopup

I can send message from linux box (Mandrake8.2) using linpopup, but can not receive them. The other machines are running XP, with RealPopUP, and I can see the Linux box in the browser for RealPopup. Samba is running, I can browse from the xp to linux and use either linneighborhood or komba2 from the linux box. And I edited the smb.config file as it tells you in Linpopup, but still cannot receive.

Any suggestions?