OS is XP and using LibreOffice 4.2
How to add slides? - Several possibilities:
- ctrl+n
- menu: Insert > slide
- right click on a slide > Slide > New slide
I recommend to download the free manual which you can download from: http://www.libreoffice.org/get-help/documentation/
Animations do not respond - Please provide more information on what you did and what is the result.