Generally speaking, if you're trying to go from 10.4 to 10.6 you will fall into one of two categories. It will either work perfectly, or it will fail miserably. You landed in the latter category. So, the only way you're going to do this is to format your existing drive and install a fresh copy of 10.6, unless you want to spend maybe another 150USD more to try and find a copy of 10.5 for the sole purpose of upgrading to 10.5 before going to 10.6.
I have 10.4.11 on my iMac. Was told that if I purchased/installed the Mac OS X Snow Leopard Box Set I will be updated enough to link my iPad (once I updated iTunes). So...I bought it and attempted to install.
I inserted the first disk, chose English, chose my HD (not my Lacie backup drive) for installation and left for a bit after the timer said it would take 44 minutes to install. When I came back, I got a 'Failed, would you like to try, again?'. I did. This time, when I am offered both drives, there is a warning sign on my HD and the note on the screen says, 'The contents of this disk can't be changed'. HUH?
I'd appreciate someone explaining to me what I'm doing wrong and more importantly, what I need to do to get this thing going!
Many thanks in advance for advice.

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