for that libxcursor-dev problem there is another package that owns a file libxcursor-dev is trying to overwrite. Try this:


su
cd /var/cache/apt/archives
dpkg --force-overwrite -i libxcursor-dev_1.0.2-2_i386.deb (for example, that's the version I have, put your file name there)
apt-get -f install

See if that does it for you. Don't type my comments in parenthesis. Good luck. Sorry I don't speak whatever you are speaking. German? Dutch?