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I used to have two iMacs running Lion connected to each other via Firewire.

On starting up a computer, two icons representing both computers would appear. I would select one and type in the password.

Now I have sold one of the computers but both icons still appear on start-up, requiring me to choose one.

How do I eliminate the unnecessary start-up icon?

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I don't think posting your e-mail address is necessary, you can click something about e-mail alerts for answers. – please delete me Oct 25 '11 at 0:15
Could you possibly take a picture of the selection screen? – Jay Thompson Oct 25 '11 at 0:27
Yes please post a picture - I'm quite curious as to how you were "selecting a machine" as opposed to just booting one iMac and connecting to the other one via Firewire Target Disk Mode. – chrismanderson Oct 25 '11 at 1:54
Or do you have two bootable partitions (Bootcamp maybe) on your Mac? – patrix Oct 25 '11 at 5:29

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