phpPgAdmin cannot login to server

I have asked this once, but never got a definitive answer, so am asking 
again.

Have Suse 9.2 server running postgresql 7.4, apache 2. and phpPgAdmin. I 
can loginto to the server using either pgadminIII, OOoBase, or MS Acess 
from my windows machine with no problem. When I try to login with 
phpPgAdmin as postgres (same as in pgadmin or msaccess), all I get is a 
Login disallowed for security reasons and no info in serverlog or 
postgresql log. Logingin as user, I get Login failed and the serverlog 
show IDENT authentication fail for user afore.

Would like to have any info with an example if possible on how to fix 
this or where to find out how to fix this. Have searched the web but 
found nothing.

Art