Hello, I have a late 2008 MacBook and randomly tonight when I went to start it up I got a constantly repeating blue screen load. I've checked around on the internet for troubleshooting and what I saw instructed me to insert the OSX installation disc and boot from there. One set of instructions asked me to repair the disc, I tried this and got an error. Then I tried an archive and install and this failed as well. I made no updates today and when I shut it down this afternoon it was working properly. Does anyone have any clue what might be wrong and how to fix it?