debian upgrade problem

[CM²S]

hello,

hab debian sarge testweise als dns server , proxy usw laufen... wollte upgrade machen.

The following packages will be upgraded:
fetchmail gnomemeeting libc6 libmagick6 libpgtcl libpq3 postgresql-client
postgresql-doc
8 upgraded, 0 newly installed, 0 to remove and 1 not upgraded.
Need to get 0B/12.9MB of archives.
After unpacking 1203kB of additional disk space will be used.
Do you want to continue? [Y/n] y
Preconfiguring packages ...
(Reading database ... 117983 files and directories currently installed.)
Preparing to replace libc6 2.3.2.ds1-22sarge4 (using .../libc6_2.3.2.ds1-22sarge5_i386.deb) ...
Unpacking replacement libc6 ...
dpkg: error processing /var/cache/apt/archives/libc6_2.3.2.ds1-22sarge5_i386.deb (--unpack):
trying to overwrite `/usr/share/zoneinfo/posix/America/North_Dakota/New_Salem', which is also in package tzdata
dpkg-deb: subprocess paste killed by signal (Broken pipe)
Errors were encountered while processing:
/var/cache/apt/archives/libc6_2.3.2.ds1-22sarge5_i386.deb
E: Sub-process /usr/bin/dpkg returned an error code (1)

tzdata kann ich wohl schlecht deinstallieren, hat diesen Fehler auch noch jemand von euch gehabt ... ?

ciao
CM²S