Originally Posted by capngene
SUCCESS, I re-did the update, then booted in safe mode and ran NetBook Installer. Restart and everything works. So, I guess you have to run NetBook installer after every update.
I am also very new to this, but with all the expert help on this forum, I now have a fully functional OS X 10.5.8 running on my Dell Mini 9.
I got the gray screen as well, but learned on this forum to press the "-" key, you will see a small text dialogue on the bottom left of the screen, then type"x" (without the quotations of course) so that it is "-x" which will boot you onto safe mode, then run the installer, NBI or DellEfi2a5, then re-boot, and it will work normally.
The most stressful problem I had was trying to use extended desktop! I accidentally switched on mirroring...never do that! and it was a hassle to get it to work again. But through the professional posts on this site I found this link: Fabin Caas
which had an app that even solved that problem!
Much Thanks to all the techs on here who take the time to help us "noobs" out!! Thanks again everyone!