Macbook Fun!!

Well, as they say 'back up your computer!'
So I had a 1TB My Book at home with everything up to a few months ago on it from my PC and Windows Laptop BUT I had been dithering about what hard drive to buy so I could use it exclusively for the Macbook Pro...
Away working I must have bumped a key so the cursor disappeared and when I clicked the spot I was up to it began to 'think' and 10mins later was still doing that... One forced shutdown later it wouldn't reboot... hard drive issues!!
Turns out the 'geniuses' at Apple replaced several components including the hard drive, only to discover it was a flex cable fault... which means my data has been migrated to the new drive and appears to be OK... I will know when I pick it up tomorrow and run some files!! Phew!!
I will also not leave the Apple Store without aformentioned external drive for backing up the entire machine!!
Normal transmission will soon resume!!