i was just using the iMac as normal and then suddenly the screen went all distorted, green lines everywhere on the whole screen-its only a week old!! (the rev before the isight imacs) i ran the hardware test and i recvieve error code 2ATI / 1 / 4 : 113 - xxxxx - 117 i believe this may be an issue with video ram?? anyone heard of this happening? is there anything i can do or is this gonna be a send it to apple job... help! also, i installed a 1Gb ram stick into the machine myself when i got it.. Could it maybe be related to a memory bay fault or not?