When I try to encrypt a file using KGpg 2.1.0 I get Process halted Not all files were encrypted

[user1]

I am using ubuntu 9.04 and KDE 4.2.2

When I try to encrypt a file using KGpg 2.1.0 I get Process halted Not 
all files were encrypted.

When I do: "gpg -e filename" from the command line it works ok