Hi all, this is my first time posting in this forum, though many a time I have found solutions here, but not this time. I'm selling my old 2007 white macbook but haven't the instillation DVD's. So I 1. Downloaded a copy of the Snow Leopard DVD. 2. Formatted my flash drive with GUILD and mac osx Extended (journaled) 3. Copied the DVD image to the flash drive using disk utility (note that this changed the formatting to Mac OS X Extended. i.e. No longer journaled 4. Restarted the macbook with 'option' held down 5. Select the USB flash drive 6. Select to install OS X 7. Agree to the licence agreement 8. "Mac OS X cannot be installed on this computer." message appears when instillation should begin. Can't go any further so restart the machine. Any suggestions people?