Boys and girls: My beloved 17" iMac has developed a slight balance problem: The right of the display is a little lower than the left side. I mean, I looked at it from an angle I normally do not and BAM! I saw it! I measured it, and it's about 3cm off-balance. Now that I know, I can see nothing else! Arggh! Anyone else's iMac screen the same? What do you guys think about buying a spanner tool and trying to tighten up the arm joints? It is only 6 months old, so I hate that this happened: I've always been very careful too. I've got a crooked Mac.