I have a 20" aluminum late 2007 model iMac. A couple of weeks ago the screen went bright white. The computer is still functional. It was hooked up to an extended monitor at the time when it happened and it works fine with an external monitor. I took it to an Apple store and they tried to change out the optical flex cable and the video data cable but it didn't work. They told me the LCD panel is probably the problem. I've been doing lots of research on replacing it on my own. Of course apple wants 700 some dollars plus labor to fix it. I'm looking for broken imacs with the same model LCD panel to just change it out. I do have experience opening up computers and fixing them and I have been in my imac a few times and it seems pretty simple to replace the LCD panel. Has anyone here had some success in replacing their LCD in this particular model of imac? I really don't have the money to put 700 into this and I don't have the money to buy a new one. Unfortunately I didn't have applecare and the computer is only a year and half old. If anyone has any tips or suggestions I would appreciate them. Thanks in advance.