So my 27" i7 iMac from last year has some pretty annoying blotching on the LCD. It's not noticeable with a dark screen but when viewed with lighter colors it shows up pretty well. As a photographer this was extremely annoying when editing as I kept trying to edit my photos for dust spots when it was just my computer. So I was wondering? Has anyone of you had this problem and secondly what is apple most likely to do when I take it in to the Apple Store? Will they replace the machine entirely or just the LCD. My biggest concern is that I'm not able to be without my computer so I hope that they can just give me a new one or at least a temporary machine until mine is fixed. Thanks for any input or experiences you can share!