I've had my MacBook Pro for right around a year and a half now, and I'd say since I've had it it's probably went frozen on a blue screen 5-10 times in that course of time. I've never had the startup to blue screen problem however. The most recent time that it froze on the blue screen was right as I was clicking "Quit iPhoto" from the drop down menu. As soon as I clicked it, it went to the blue screen. Could this be rooted in a deeper problem that could worsen, or is it normal for Macs to do this every now and then?