Thanks a lot for your help!

But still the same problem...

Here is the output from xTerm:

Nokia-N900:~# apt-get autoclean
Reading package lists... Done
Building dependency tree
Reading state information... Done
Nokia-N900:~# apt-get autoremove
Reading package lists... Done
Building dependency tree
Reading state information... Done
0 upgraded, 0 newly installed, 0 to remove and 6 not upgraded.
2 not fully installed or removed.
After this operation, 0B of additional disk space will be used.
Setting up libsmpeg0 (0.4.5+cvs20030824-2.3-0maemo1) ...
Optifying usr/share/doc/libsmpeg0 -> /opt/maemo/usr/share/doc/libsmpeg0
mv: cannot rename '/usr/share/doc/libsmpeg0': No such file or directory
dpkg: error processing libsmpeg0 (--configure):
subprocess post-installation script returned error exit status 1
dpkg: dependency problems prevent configuration of python-pygame:
python-pygame depends on libsmpeg0; however:
Package libsmpeg0 is not configured yet.
dpkg: error processing python-pygame (--configure):
dependency problems - leaving unconfigured
Errors were encountered while processing:
libsmpeg0
python-pygame
E: Sub-process /usr/bin/dpkg returned an error code (1)

Also deactivated testing and devel...