UPDATE (2010-08-25): This article describes how to configure Ubuntu 8.04 LTS (Hardy Heron) for stable 3D-acceleration and desktop-effects with ATI R300 series (Radeon Mobility 9600 and similar) GPUs. On recent Ubuntu versions (such as 10.04 LTS) this should work out of the box, and making modifications to xorg.conf may actually introduce unwanted artefacts. Therefore if you upgrade from 8.04 LTS to 10.04 LTS you should remove your customised settings. See the description at the bottom of the article for more details...
In Linux-land there are two major package management systems, APT/dpkg and YUM/RPM. My favourite of the two is definitely APT, which is mostly used by Debian and derivatives such as Ubuntu. Yum is used by Red Hat and derivatives such as CentOS, Fedora and SME, and works just fine for installing packages.
As almost anyone will know, the de facto "standard" document format for the last decade or so has been the MS Word Document, or .doc file. Every week I receive dozens of .doc and .xls files per e-mail. And every now and then I try to convince people to store their documents in a different file format, usually without much success. So what's wrong with using .doc files anyway?
OOoLatex is no longer being updated by Geoffroy Piroux. Roland Baudin has created an up-to-date fork for LibreOffice called TexMaths. To install that on a recent version of Ubuntu, first get the required packages: