I followed the getting started youtube video
on the scala-ide.org main page on a fresh installation of Indigo. Instead of showing the complete documentation for the String Java class, it shows "type String = String"
I did notice incidentally by looking at the project properties, that in the scala-library.jar and others in the project, under "javadoc location," they show "(None) - non modifiable." I'm not sure if this is the problem, or if the Scala editor gets its documentation somewhere else, but regardless it appears broken.