Oooooh, Major Problems!

I've had Adobe CS3 for a few years now and I don't know what I did wrong or the installer was corrupt but AE keeps shutting down my PC. I doubt its lack of power as I have an Intel 9 processor with 12GB of Ram with a 2BG graphics card in my custom build, so just acquiring a newer version of the software and fingers crossed I get this sorted soon and get back on track!