More problems with using apt-get

Hi,

the whole process of installing packages turns out to be
very problematic for my setting (the my email yesterday).

Now I have the problem below.
Before I came to this situation I got very similar
error message for any  package I tried to install
with "apt-get install".
Neither apt-get clean nor a reboot helped.

I even do not know whether this is a broken apt
or something completely different.
Hints welcome!

| ~# apt-get update
| Hit http://nonUS.debian.org testing/non-US/main Packages
| Hit http://nonUS.debian.org testing/non-US/main Release
| Hit http://ftp.debian.org testing/main Packages
| Hit http://ftp.debian.org testing/main Release
| Get:1 http://ftp.debian.org testing/main Sources [1265kB]
| Get:2 http://ftp.debian.org testing/main Release [83B]
| Fetched 1265kB in 9s (131kB/s)
| Failed to fetch
| http://ftp.debian.org/debian/dists/testing/main/source/Sources.gz
| rename failed, No such file or directory
| (/var/lib/apt/lists/partial/ftp.debian.org_debian_dists_testing_main_source_Sources.decomp
| ->
| /var/lib/apt/lists/ftp.debian.org_debian_dists_testing_main_source_Sources).
| Failed to fetch
| http://ftp.debian.org/debian/dists/testing/main/source/Release  rename
| failed, No such file or directory
| (/var/lib/apt/lists/partial/ftp.debian.org_debian_dists_testing_main_source_Release
| ->
| /var/lib/apt/lists/ftp.debian.org_debian_dists_testing_main_source_Release).
| Reading Package Lists... Done
| E: Some index files failed to download, they have been ignored, or old
| ones used instead.

-- 
Jan-Oliver Wagner               http://intevation.de/~jan/

Intevation GmbH                      http://intevation.de/
FreeGIS                                http://freegis.org/