Error when signing a key

Hello!

This is my first post to the list.
I compiled gpg 1.4.0, gpgme 1.0.2 and gpa 0.7.0
If I try to sign another key from within gpa, I get:

GPA Error:
The GPGME library returned an unexpected error. The error was:
General error
This is probably a bug in GPA.
GPA will now try to recover from this error.

I'm running Slackware 10: Linux 2.4.26 #6 Mon Jun 14 19:07:27 PDT 2004  
i686 unknown unknown GNU/Linux

If you tell me how to get more debug output I can post it..

bye!
Dominik