Hello, I just inherited an older 2.4 GHZ Intel Core Duo MacBook Pro with 2 GB's 667 MHZ DDR2 SDRAM running Snow Leopard 10.6.8. It runs fine until it freezes. It's like i've hit a button to highlight everything on the screen but I haven't. The mouse moves but I can't click on anything or even quit and have to reboot manually. Does anyone know of a fix? Thanks in advance.