I upgraded everything in my computer except my hard drive and cd drive (which are both roughly 7 years old) I have a core 2 duo 2.33 gh processor, 3 gig ram, yet still it seems my computer has slow response time on most things. I always figured it was lack of ram but with the 3 gigs i have now im pretty sure that's not it. So my question is, could your hard drive actually slow down your computers response time? and anyway to check it with system tools? I have antivirus, firewall, and spybot so I don't think it's software either..