I have a Mac Pro 1,1 and I do music production. I just upgraded to Lion because I had to for some other applications...and now occasionally, I have some pixelation blocks on the screen and had a crash once where the whole (2) screens pixelated. Is there a guide on how to run this OS in a bare bones fashion? I don't need any of the bells and whistles...Tried to google, but can't find anything about it... Thanks!