A little strange question. 4 months ago i bought my dream iMac, the most expensive version they sell on the online store, it had a huge spot where colour was bleeding, by huge i mean a size of 2 apples, i just wanted to have an iMac so i didn't care much about it. Then some of the letters on my keyboard stopped working so apple sent me a new one, in a foreign (Russian) language, i called them, they send me another one. Russian again so i just ended up buying my own English version. Now my iMac can't even start up, it just restarts before it'd turn on so i chatted to apple customer s. for about 2 hours, tried every possible thing but it just won't work so i have a Genius app. for tomorrow. Now I'm extremely concerned because i've had my MacBook Pro repaired twice and once it came back with actual dents on the case but i've noticed it in the store when they gave it to me so they swapped the casing but i just can't go trough that with my expensive iMac again so i want to ask them to wipe the OS in front of me in the store or swap the whole iMac, i know some of you will moan that it's stupid but for a student who spent thousands of GBP on a computer it's just not OK to risk getting it scratched again. So i just wanted to ask if anybody had a similar issue when they had to ask for a swap and succeeded. It'd also be very, very helpful if anyone who had the same issue could advise me of possible solutions. Thanks!