kmail openpgp plugin problems

[Tom Badran <tb100@doc.ic.ac.uk>]

Firstly, i set up everything exactly as the aegypten projects website 
describes except using pinentry-gtk instead of qt as reccomended by ralf, and 
btw im using ralfs debs. I also have been using the same gpg setup for a long 
time without problems from the command line.

Strange problem, i can encrypt emails fine, im not asked for a password and 
all works well, to myself and to others. However i can sign messages, i get a 
pop up box saying :

This message could not be signed!
The Crypto Plug-In '/usr/lib/cryptplug/gpgme-openpgp.so' reported the 
following details:
#19 : No Passphrase
Your configuration might be invalid or the Plug-In damaged.
Please contact your system administrator.

Also, when recieving an encrypted message i get:

Cannot decrypt message.
Error: No passphrase.
Content could *not* be decrypted.
reason:
    Crypto Plug-In /usr/lib/cryptplug/gpgme-openpgp.so could not decrypt the 
data.
proposal:
    Error: No passphrase.
End of encrypted message

Like i say, it works encrypting, but not decrypting or signing, and im never 
asked for my passphrase. I am definately using the plugin and not the inline 
version (i activated the plugin and in the new message dialog it now defaults 
to "OpenPGP (plugin)".

Any Ideas?

Thanks

Tom