OK, so I have a 2006 iMac (September 2006 version) and I have a 20 inch Apple Cinema Display connected to it. Resolution is good, but the iMac screen stays on. Is there a way for it to turn off, like when you do a similar setup with a Macbook pro?
Or is this the best I can do with this setup?
Or is this the best I can do with this setup?