error messages from named.

I have just setup the nameserver (named) in FC11.

During the startup of the nameserver (from init.d), there is the error message:

the working directory is not writable

(I assume this is an error). What is it complaining about (what directory)
and should I change some permissions somewhere???

Second, with named running I am seeing a large number of lines in the
/var/log/messages file of the form

Feb 12 19:31:19 clemens-fw named[3670]: network unreachable resolving
'caiaq.de/A/IN': 2001:668:1f:11::105#53
Feb 12 19:31:19 clemens-fw named[3670]: network unreachable resolving
'ns.udagdns.de/AAAA/IN': 2001:628:453:4905::53#53
Feb 12 19:31:19 clemens-fw named[3670]: network unreachable resolving
'ns.udagdns.de/AAAA/IN': 2001:608:6:6::10#53
Feb 12 19:31:22 clemens-fw named[3670]: network unreachable resolving
'tuminfo1.informatik.tu-muenchen.de/A/IN': 2001:4ca0:0:100:0:53:1:1#53

aeb 12 19:31:57 clemens-fw named[3670]: connection refused resolving
'twiddle.net/MX/IN': 75.149.56.221#53
Feb 12 19:31:58 clemens-fw named[3670]: unexpected RCODE (REFUSED) resolving
'twiddle.net/MX/IN': 66.92.179.195#53
Feb 12 19:31:58 clemens-fw named[3670]: connection refused resolving
'twiddle.net/MX/IN': 75.149.56.221#53
Feb 12 19:31:58 clemens-fw named[3670]: unexpected RCODE (REFUSED) resolving
'twiddle.net/MX/IN': 66.92.179.195#53
Feb 12 19:31:59 clemens-fw named[3670]: connection refused resolving
'twiddle.net/MX/IN': 75.149.56.221#53
Feb 12 19:31:59 clemens-fw named[3670]: unexpected RCODE (REFUSED) resolving
'twiddle.net/MX/IN': 66.92.179.195#53
Feb 12 19:31:22 clemens-fw named[3670]: network unreachable resolving
'tuminfo1.informatik.tu-muenchen.de/A/IN': 2001:4ca0:0:100:0:53:1:1#53

Is this normal with this version of named, or have I done something wrong
in the configuration???