Gradle "cannot resolve symbol 'task'"

Hi,

I've just started working with Gradle - wrote the "hello world"

task helloWorld {

  println 'Hello World'

}

The symbols "task" and "helloWorld" are coming up cannot resolve.

+ when i try to create an new project or module, the "Gradle" option is not available as per http://www.jetbrains.com/idea/webhelp/creating-a-gradle-project.html

Some env. info:

• IntelliJ IDEA ultimate 12.1.6
• Windows O/S
• Gradle 1.11
• Groovy 1.8.6
• I have the bundled Gradle  & Groovy plugins installed, and the Gradle is configured to the install folder
• I can run the script from the IDE & command line

How do i get IJ to recognise the syntax?

~gilbert