Hi all, Firstly, I'm fairly new to all this and pass on a huge thanks to all those that know tons of stuff who have helped me when I've been stuck. What I have achieved may not be that valid to most but may help out some other newbies!! Just wanted to let you know that I have successfully update my AAO A150 with iDeneb 10.5.8. Firstly, I installed iDeneb 10.5.6 following instructions found in this forum. I then upgraded to 10.5.7 using the iDeneb upgrade kit and followed the instructions here [url="http://www.insanelymac.com/forum/index.php?showtopic=129774"]http://www.insanelymac.com/forum/index. ... pic=129774[/url] to get the system working including screen resolution. I then upgraded to 10.5.8 using the iDeneb upgrade kit and followed the same instructions as 10.5.7 and all works well. Sound, resolution, installing programs, iLife, Office, etc... It is also dual booting with windows 7. Tezza