Quote Originally Posted by ngc7088
This time something did happen. The Cinelerra now appears under "Sound & Video". But it does not run. Nothing happens. Not even error messages. These were the messages during instalation:

root@Microknoppix:/home/knoppix# sudo dpkg -i /home/knoppix/Desktop/*i386.deb
Selecting previously deselected package cinelerra.
(Reading database ... 99714 files and directories currently installed.)
Unpacking cinelerra (from .../cinelerra_2.1.0-2svn20071030_i386.deb) ...
Selecting previously deselected package libguicast.
Unpacking libguicast (from .../libguicast_2.1.0-2svn20071030_i386.deb) ...
Selecting previously deselected package libmpeg3hv.
Unpacking libmpeg3hv (from .../libmpeg3hv_2.1.0-2svn20071030_i386.deb) ...
Selecting previously deselected package libquicktimehv.
Unpacking libquicktimehv (from .../libquicktimehv_2.1.0-2svn20071030_i386.deb) ...
Selecting previously deselected package libsndfilehv.
Unpacking libsndfilehv (from .../libsndfilehv_1.2.2-4cvs20050909_i386.deb) ...
dpkg: dependency problems prevent configuration of cinelerra:
cinelerra depends on liblame0 (>= 3.97); however:
Package liblame0 is not installed.
cinelerra depends on libmjpegtools0 (>= 1:1.8.0); however:
Package libmjpegtools0 is not installed.
cinelerra depends on libopenexr2ldbl (>= 1.2.2); however:
Package libopenexr2ldbl is not installed.
cinelerra depends on libraw1394-8; however:
Package libraw1394-8 is not installed.
dpkg: error processing cinelerra (--install):
dependency problems - leaving unconfigured
Setting up libguicast (1:2.1.0-2svn20071030) ...
dpkg: dependency problems prevent configuration of libmpeg3hv:
libmpeg3hv depends on liba52-0.7.4; however:
Package liba52-0.7.4 is not installed.
dpkg: error processing libmpeg3hv (--install):
dependency problems - leaving unconfigured
dpkg: dependency problems prevent configuration of libquicktimehv:
libquicktimehv depends on liba52-0.7.4; however:
Package liba52-0.7.4 is not installed.
libquicktimehv depends on libfaac0 (>= 1.25); however:
Package libfaac0 is not installed.
libquicktimehv depends on libfaad0 (>= 2.5); however:
Package libfaad0 is not installed.
libquicktimehv depends on liblame0 (>= 3.97); however:
Package liblame0 is not installed.
libquicktimehv depends on libmpeg3hv (>= 1:2.1.0); however:
Package libmpeg3hv is not configured yet.
dpkg: error processing libquicktimehv (--install):
dependency problems - leaving unconfigured
Setting up libsndfilehv (1:1.2.2-4cvs20050909) ...
Processing triggers for man-db ...
Processing triggers for menu ...
Errors were encountered while processing:
cinelerra
libmpeg3hv
libquicktimehv
root@Microknoppix:/home/knoppix#

Also, there must be something wrong with the Kdenlive instalation too. The rendered video is a garbage file, players cannot play it.
It looks like you didn't get everything necessary when you downloaded. Lame in particular is not there, which I think is the nub of the problem. Did you visit the recommended (from http://cinelerra.org/getting_cinelerra.php#apt) page at http://www.debian-multimedia.org/ to get the non-cinelerra multimedia packages it depends on? I know it's tedious, but it WILL work if you are persistent, I'm sure.

Krishna