xdvi helvetica ubuntu download

Warning: Cannot convert string "-*-helvetica-medium-r-*-*-12-*-*-*-*-*-*" to type FontStruct
Warning: Missing charsets in String to FontSet conversion
Warning: Cannot convert string "-*-helvetica-medium-r-*-*-10-*-*-*-*-*-*" to type FontStruct

apt-get install xfs xfstt
apt-get install t1-xfree86-nonfree ttf-xfree86-nonfree ttf-xfree86-nonfree-syriac xfonts-75dpi xfonts-100dp
xset +fp /usr/share/fonts/X11/75dpi/
xset +fp /usr/share/fonts/X11/100dpi/

OpenCV-2.3.1a.tar.bz2

wget http://sourceforge.net/projects/opencvlibrary/files/opencv-unix/2.3.1/OpenCV-2.3.1a.tar.bz2
tar xvjf OpenCV-2.3.1a.tar.bz2
cd OpenCV-2.3.1
ls
mkdir release; cd release
cmake -D CMAKE_BUILD_TYPE=RELEASE -D CMAKE_INSTALL_PREFIX=/usr/local -D BUILD_NEW_PYTHON_SUPPORT=ON -D BUILD_EXAMPLES=ON ..

 How do I set focus follows mouse?

 use gnome-tweak-tool