If you find reading the screen difficult, for any reason then try Readplease, it is a free download for home use and can be quickly installed onto yor computer. Just click the link http://www.readplease.com/
If you are working with Windows XP then checkout the built in accessibility features on your computer, also consider downloading the opera browser, it is faster and has a voice function built in.
Incorporates a useful set of functions to help people get the most out of their computer, so if you find it difficult to press multiple keys e.g. ctrl, alt del then you can turn on the sticky keys feature (press shift 5 times) to check out the full range of options including speech recognition just type accessibility into the search box on your start menu
In order to read some of the files attached to this web site you may need to download and install a document viewer.