I applied for Student Visa from Abu Dhabi through VAC office for Sept 2013 intake, this is the 10th week for processing my application

.. before three days I got e-mail from embassy, they told me:
(( All applications for temporary residence in Canada are subject to statutory requirements, including background checks. These requirements must be satisfied before an applicant may be granted temporary resident status. We are currently conducting certain background investigations. As these are conducted by outside agencies, we are not in a position to determine when your application will be finalized.
We can appreciate that you anxiously awaiting news about your application. Please rest assured that we will be in contact with you as soon as possible. ))
I don't know how long it will take to finish background checks and take the final decision ?? ??? :-[