cpio: MD5 sum mismatch at package perl-mail

[Michael Schmitt]

As I try to install kolab (sh obmtool kolab) I get an error with the
package perl-mail. I did install it at least once without an error from
the same source-tree (kolab2 beta3) on the same debian sarge box. I
tried to remove the file (see errormessage), tried removing the package
from /kolab/RPM/"SRC|PKG", tried removing the complete /kolab/RPM/TMP/
directory to no avail. Any hints?
See the errormessage right at the end of this mail.

regards
Michael

Preparing...
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perl-mail
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error: unpacking of archive failed on
file /kolab/lib/perl/vendor_perl/5.8.5/Mail/Message.pod;42378f33: cpio:
MD5 sum mismatch