install probleme on i386 woody

[JCharles <jcb@chez.com>]

hi,
what can i do ?

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The following extra packages will be installed:
  tetex-base tetex-bin 
The following NEW packages will be installed:
  tetex-base tetex-bin 
0 packages upgraded, 2 newly installed, 0 to remove and 2 not upgraded.
1 packages not fully installed or removed.
Need to get 0B/13.9MB of archives. After unpacking 43.3MB will be used.
Do you want to continue? [Y/n] y
(Reading database ... 35385 files and directories currently installed.)
Unpacking tetex-base (from .../tetex-base_1.0.2-1_all.deb) ...
dpkg: error processing /var/cache/apt/archives/tetex-base_1.0.2-1_all.deb (--unpack):
 subprocess pre-installation script returned error exit status 1
Unpacking tetex-bin (from .../tetex-bin_1.0.7-1_i386.deb) ...
dpkg: error processing /var/cache/apt/archives/tetex-bin_1.0.7-1_i386.deb (--unpack):
 subprocess pre-installation script returned error exit status 1
Errors were encountered while processing:
 /var/cache/apt/archives/tetex-base_1.0.2-1_all.deb
 /var/cache/apt/archives/tetex-bin_1.0.7-1_i386.deb
E: Sub-process /usr/bin/dpkg returned an error code (1)