Finally, I had the chance to get a lamp ;-) For 75€ here in Germany. It's a 17" iMac G4, only 512MB, no Airport, 80GB HDD, but in perfect condition. Memory is on the way, Airport let's see. Seems a pixel is dead, but it's ok. The case is in perfect condition and white, only the white frame of the monitor is a little bit yellowish. Now, the question: I know it it possible to open/ replace the screen (as described on the ifixit site), there are three screws. I just want to separate the white frame (1) from the acrylic one (2) - see my picture here. It's on the read side of the acrylic case. On the ifixit site it's not really clear if they can be separated. I just want to clean the white frame to get it (as close as possible) white. Thx!