KMail can't verify smime signed e-mails

Hello,
KMail + S/MIME. The problem is it manages to encrypt/decrypt messages with 
smime, but it can't verify if the sign is correct. In gnupg log I've found 
these lines, which were generated while KMail was opening smime signed 
message:

 8 - 2007-01-06 13:30:57 gpgsm[8441.0x80820f8] DBG: -> OK
  8 - 2007-01-06 13:30:57 gpgsm[8441.0x80820f8] DBG: <- VERIFY
  8 - 2007-01-06 13:30:57 gpgsm[8441]: detached signature
  8 - 2007-01-06 13:30:57 gpgsm[8441.0x80820f8] DBG: -> S NEWSIG
  8 - 2007-01-06 13:30:58 gpgsm[8441]: no signature value available
  8 - 2007-01-06 13:30:58 gpgsm[8441.0x80820f8] DBG: -> OK
  8 - 2007-01-06 13:30:58 gpgsm[8441.0x80820f8] DBG: <- BYE

I've got
Kmail-3.5.5
gpgme-1.1.2-r1
gnupg-1.9.20-r3
cryptplug-0.3.16-r1
dirmngr-0.9.3
and some others like pinentry and so but these have little to do with above 
error I think.
All runs on Gentoo with 2.6.18 kernel. All stuff was compiled with smime 
support. Checking certs in Kleopatra works fine and everything seems to be 
correct.

Kmail shows kind of 'details' link within smime signed message, but nothing 
happens when I click on it.

Any ideas... aaahhh... SMIME in Thunderbird works just out of the box...
Thx, Petri