Force regenerate R.java is disabled

Hi board..

Ive just started out evaluating Intellij for android development and i found it very nice.

however ive found some strange thing with my new module.

The nice feature 'Force regenerate R.java' is disabled (gray).

Am i missing something in my setup? i have copied a old 'gen' folder and renamed it to match current package.

Even rebuild of the project doesnt regenerate it.. ive tried altering xml's. too.

// sapo