Our machines are both 64 bit and no issues. Also, I had the ASUS G73 which is probably the one you are talking about. It works fine for all of these things. I neeeded something more portable because that thing is too big and heavy. Not sure about you but I needed something powerfull like that but more portable and better battery life. I got something better but with smaller screen and graphics card that's not as good. Glad I switched.