Hi all, Ive bought a Mac Mini and have been using it every day for a few hours for the last 3 - 4 weeks now. And one day when i started up the mac my screen kept flashing on and off. Like the hole interface is there for one minuet then it goes black and comes back for a while then dispaeares again! Could it just be a broken connection with my monitor? any help much appreciated! thankyou.