gpg-agent troubles

[kapetr]

Hello

1. gpg-agent ignores changed values in ~/.gnupg/gpg-agent.conf after
SIGHUP. I have to kill/restart him ?!
2. gpg-agent ignores "ignore-cache-for-signing" in config file. I
had to set "default-cache-ttl 0"  (which is for all) ?
3. pinentry do not drag mouse(keyboard yes) even if there is no
"no-grab". With pinentry dialog open I can still work with mouse
- switch windows, copy/paste text, ... I'm not sure, if it is any
security risk, but ...

Please Help

--kapetr

P.S.
I Use Ubuntu 10.10 - gpg (GnuPG) 1.4.10
gpg-agent cmdline:
"usr/bin/gpg-agent --daemon --sh
--write-env-file=/home/hugo/.gnupg/gpg-agent-info-duron650
/usr/bin/dbus-launch --exit-with-session gnome-session"