Hi This is my first post here as brand new mac user. I decided to purchase the new iMac. However not all has gone well, firstly I knocked it off the desk and shattered the screen on New years day. Insurance claim was processed and after an extra £200 excess I had a like for like replacement. I have woken up this morning and gone to use it and noticed a thumb sized crack / chip on the right edge. I can categorically say that no collision or accidental damage was done this time to cause this damage. Has anybody else experienced anything like this. I have an appointment with a genius in the store on Tuesday evening and am prepared to fight this very strongly as I am convinced there must have been a manufacturing defect in the glass. Pics are posted below. The side shot shows no damage at all to the casing. Thanks everyone.