so i noticed the infamous gradient issue with my 20" iMac yesterday... and it's consumed my mind ever since... i've done some reading, but couldn't find out if it was something that i could return to apple for a new one... and also i'm trying to decide if it's even really worth it. it's not really bad, but i was designing a post card last night with a black background and it was very apparent that there was a gradient. i had to keep moving my head up and down to see some of the detail, etc. so annoying!! so what's the overall verdict? is there a resolution to this issue? will apple switch it out for a different machine? and if so, should i just suck it up and get the 24" even though there might be an issue with it as well? GRAPHIC DESIGNERS: what did you do?