model name: macbook pro 15" model identifier: MacbookPro 1.1 CPU: 1.83G 512M memory, boot room version: MBP11.0055.b08 SMC version 1.2F10 don't know what happen since few weeks ago. OS X Tiger can't boot up, （blue screen and only have a mouse icon) only can boot up at safe mode (shift + power) and the screen have a lot of red square (display problems). use the install disk reinstall OX tiger 10.4.5 still the same do hardware test everything OK now update to tiger 10.4.11 still the smae problems. my macbook pro using only 1 year, and i heard the news about many macbook pro screen have display problems so far. please help.