Трабла с deltup

Обновляюсь с помошью deltup и получаб следуюшую вещь:
gentoo-tux mc # emerge -f mozilla-firefox
Calculating dependencies... done!
>>> Emerging (1 of 1) www-client/mozilla-firefox-1.5.0.5 to /
>>> Previously fetched file: firefox-ru-1.5.0.5.xpi MD5 ;-)
>>> Previously fetched file: firefox-ru-1.5.0.5.xpi RMD160 ;-)
>>> Previously fetched file: firefox-ru-1.5.0.5.xpi SHA1 ;-)
>>> Previously fetched file: firefox-ru-1.5.0.5.xpi SHA256 ;-)
>>> Previously fetched file: firefox-ru-1.5.0.5.xpi size ;-)
>>> Previously fetched file: mozilla-firefox-1.5.0.5-patches-0.1.tar.bz2 MD5 ;-)
>>> Previously fetched file: mozilla-firefox-1.5.0.5-patches-0.1.tar.bz2 RMD160 ;-)
>>> Previously fetched file: mozilla-firefox-1.5.0.5-patches-0.1.tar.bz2 SHA1 ;-)
>>> Previously fetched file: mozilla-firefox-1.5.0.5-patches-0.1.tar.bz2 SHA256 ;-)
>>> Previously fetched file: mozilla-firefox-1.5.0.5-patches-0.1.tar.bz2 size ;-)
>>> Downloading http://distfiles.gentoo.org/distfiles/firefox-1.5.0.5-source.tar.bz2
Searching for a previously downloaded file in /usr/portage/distfiles

We have following candidates to choose from
firefox-1.5.0.1-source.tar.bz2
firefox-1.5.0.3-source.tar.bz2
firefox-1.5.0.4-source.tar.bz2
firefox-1.5-source.tar.bz2

The best of all is ... firefox-1.5.0.4-source.tar.bz2

Checking if this file is OK.

Trying to download firefox-1.5.0.4-source.tar.bz2-firefox-1.5.0.5-source.tar.bz2.dtu

--00:03:49-- http://linux01.gwdg.de/~nlissne/deltup.php?have=firefox-1.5.0.4-source.tar.bz2&want=firefox-1.5.0.5-source.tar.bz2&url=ftp://ftp.mozilla.org/pub/mozilla.org/firefox/releases/1.5.0.5/source/firefox-1.5.0.5-source.tar.bz2&version=0.7&time=1154549029
=> `deltup.php?have=firefox-1.5.0.4-source.tar.bz2&want=firefox-1.5.0.5-source.tar.bz2&url=ftp:%2F%2Fftp.mozilla.org%2Fpub%2Fmozilla.org%2Ffirefox%2Freleases%2F1.5.0.5%2Fsource%2Ffirefox-1.5.0.5-source.tar.bz2&version=0.7&time=1154549029'
Распознаётся linux01.gwdg.de... 134.76.13.21
Устанавливается соединение с linux01.gwdg.de|134.76.13.21|:80... соединение установлено.
Запрос HTTP послан, ожидается ответ... 302 Found
Адрес: http://134.76.13.21/~nlissne/deltas/firefox-1.5.0.4-source.tar.bz2-firefox-1.5.0.5-source.tar.bz2.dtu [переход]
--00:03:51-- http://134.76.13.21/~nlissne/deltas/firefox-1.5.0.4-source.tar.bz2-firefox-1.5.0.5-source.tar.bz2.dtu
=> `firefox-1.5.0.4-source.tar.bz2-firefox-1.5.0.5-source.tar.bz2.dtu'
Повторное использование соединения с linux01.gwdg.de:80.
Запрос HTTP послан, ожидается ответ... 200 OK
Длина: 1.457.524 (1.4M) [application/x-bzip2]

100%[================================================================================================>] 1.457.524 5.47K/s ETA 00:00

00:10:59 (3.32 KB/s) - `firefox-1.5.0.4-source.tar.bz2-firefox-1.5.0.5-source.tar.bz2.dtu' сохранён [1457524/1457524]

GOT firefox-1.5.0.4-source.tar.bz2-firefox-1.5.0.5-source.tar.bz2.dtu

Successfully fetched the dtu-file - let's build firefox-1.5.0.5-source.tar.bz2...

firefox-1.5.0.4-source.tar.bz2 -> firefox-1.5.0.5-source.tar.bz2: OK
cleaning up
This dtu-file saved 32 MB (95%) download size.

>>> Resuming download...
>>> Downloading http://distro.ibiblio.org/pub/linux/distributions/gentoo/distfiles/firefox-1.5.0.5-source.tar.bz2
--00:16:36-- http://distro.ibiblio.org/pub/linux/distributions/gentoo/distfiles/firefox-1.5.0.5-source.tar.bz2
=> `/usr/portage/distfiles/firefox-1.5.0.5-source.tar.bz2'
Распознаётся distro.ibiblio.org... 152.2.210.109
Устанавливается соединение с distro.ibiblio.org|152.2.210.109|:80... соединение установлено.
Запрос HTTP послан, ожидается ответ... 206 Partial Content
Длина: 35.519.188 (34M), 487 осталось [application/x-bzip2]

100%[++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++>] 35.519.188 --.--K/s

00:16:37 (38.70 MB/s) - `/usr/portage/distfiles/firefox-1.5.0.5-source.tar.bz2' сохранён [35519188/35519188]

('Failed on MD5 verification', '4e4df74b53a71ddb32ba8ab0481385e2', '4ef41c8983c47c36efada10a867ffa6f')
!!! Fetched file: firefox-1.5.0.5-source.tar.bz2 VERIFY FAILED!
!!! Reason: Failed on MD5 verification
!!! Got: 4e4df74b53a71ddb32ba8ab0481385e2
!!! Expected: 4ef41c8983c47c36efada10a867ffa6f
Removing corrupt distfile...
>>> Downloading ftp://ftp.mozilla.org/pub/mozilla.org/firefox/releases/1.5.0.5/source/firefox-1.5.0.5-source.tar.bz2
Searching for a previously downloaded file in /usr/portage/distfiles

We have following candidates to choose from
firefox-1.5.0.1-source.tar.bz2
firefox-1.5.0.3-source.tar.bz2
firefox-1.5.0.4-source.tar.bz2
firefox-1.5-source.tar.bz2
и потом закачка делты начинается заново. Файл нормально открывается и распаковывается. Кто сталкивался с подобным?