HELP> So, I am using a 13" MBP running the SL upgrade. CS4, safari, iphoto, and just about everything else was crashing, so after trying lots of things, I brought it to apple. They saw the same things so said they were going to replace the hard drive. 3 days later I get a call saying they can't find anything wrong with it. I got it back...same issues. they suggest I do an erase and install. Great. The issue is the SL disk doesnt have it. So I try with the Leopard disk. I click restart to boot to the disk and I get the 'blue screen of death' for ever. I have left it for up to an hour and a half before turning it off. So my question- Is there a way/ how do I erase and install SL upgrade? Ideas? thanks.