GPG problems

I tried to decrypt an email on a computer on which I had never run gpg before. I had the .gnupg file from my computer which I normally use for encrypted emails on a USB stick. So I plugged this stick in, opened Kgpg and set under configure Kgpg the path to /run/media/uli/ADATA UFD/.gnupg. It didn’t work for some reasons so I left it until I could check the email on my other computer. Today I wanted to check what was wrong and tried to open Kgpg and it does not run any more. I get the error message “GnuPG failed to start. You must fix the GnuPG error first before running KGpg.” CLicking on details tells me: “gpg: option file `/run/media/uli/ADATA UFD/’: No such file or directory”.
Now I tried to find where these options are set but couldn’t find anything. I deleted the ~/.gnupg file and restarted - still the same error message. Trying to start Kgpg with the USB stick mounted gives the same error message and the stick cannot be unmounted afterwards. The command:

ps -ef | grep ADATA
uli       3173  1954  4 14:39 ?        00:00:01 /usr/bin/dolphin /run/media/uli/ADATA UFD
uli       3188  2990 99 14:39 ?        00:00:12 gpg --no-secmem-warning --no-tty --no-greeting --options /run/media/uli/ADATA UFD/ --homedir /run/media/uli/ADATA UFD --debug-level none --version
uli       3190  3072  0 14:40 pts/0    00:00:00 grep --color=auto ADATA

Only after the “kill 3188” command can I unmount the USB stick. If I could get into Kgpg I could reset this setting to ~/.gnupg but this does not work. So my question is how can I reset this setting for gnupg? the command “gpg --homedir ~/.gnupg” does not work as it starts only the gpg programme with those options in the shell. Any ideas how to set gnupg back to its normal path?

Try removing the file:

$HOME/.kde4/share/config/kgpgrc

Do that when “kgpg” is not running. That should clear its configuration and allow a fresh start.

thank you, nrickert, that did the trick!