First of all I would worry more about apply the two patches to bring your version up to 8.0.2 or you will have bigger problems. See Opening Projects on my site. Fix that before you open any project again.
As to the spacing see what happens if you temporarily apply a different CSS. Also is it the same in all browsers or just one?
See www.grainge.org for RoboHelp and Authoring tips
The issue you are experiencing relates to the Font. Sometimes spacing between words is build into the font. Try changing the font. If you have the same result, then you need to look further as listed below.