如何在 Ubuntu 12.04 上的 Eclipse/Scala-IDE 中的工作表中获得内联结果?

I've got the Scala-IDE installed on my Mac and on my pc with Ubuntu 12.04. In there I created a project, with a package and in there a worksheet. On my mac, the worksheet shows results of every line on the same line on the right. For example:

package mypackage
object myworksheet {
    println("Hello World!")                                  > Hello World!
}

但是，在 Ubuntu 上，我看不到右侧的结果.我尝试在工作表中进行更改并保存它，但没有任何区别.