[gentoo-desktop] kmail, gpg, can't display encrypted mail (bad passphrase)

[Christian Parpart]

Hi,

well, I never played with encrypted messages, however, somehow, 
I required to receive one some recently but failed in decrypting 
with message "bad passphrase" - and indeed, kmail didn't ask me 
for one.

Though, I installed gpg-agent, but kmail hints me (in some self tests 
afterwards), that gpg-agent doesn't seem to run (which is not true anyway)...

Has anyone who has this working a good hint for me here?

I'm out of ideas...

Thanks in advance,
Christian Parpart.