I'm afraid to use my macbook pro because I am getting several KP's a day (that grey screen that "rolls down" and says you must restart your computer). This is getting very annoying. I started getting a lot of these KPs after 10.4.10. Before I probably got them 1-2 a week (which is still a lot). When It happends I usually am just browsing the web. I also ran Memtest and it said everything is good. Please help, I gotta go before it happends again!