Hi everyone. I have MacBook Pro Late 2011 and i have problem with it. When it's cold it often freezes, only hard reset helps, i know that problem somewhere in logic board, i changed hdd, ram. It doesn't freeze when it's warm, so i think problem is microcrack. And i know that in windows 7 safe mode it doesn't freeze. So, here's the questions: 1. What difference between Mac OS X safe mode and Windows 7 safe mode (besides resolution)? Why in Mac OS X safe mode it keeps freezing? Can i repeat Windows 7 safe mode in mac os x, so it won't freeze. 2. How can i disable equipment in Mac OS X? For example disable bluetooth, ati video chip (i have integrated intel hd) and other. (deleting kexts is dangerous, system can crash) 3. Is there a way to watch what is going on in OS? For example after sleep, if macbook cold, when i turn it on, i'll be able to move cursor for a second, before it freezes, can i watch what is going on in that second? (i know about log files, there's nothing) So, asking for your help. Sorry for my language, i'm not a native speaker.