ok i have
AMD Athlon(tm) 64 X2 Dual core processor 3800+ 2.00 GHz
5 GB ram (uped from 3GB)
Vista 64-bit
geforce 9600 GT(new)

and i just installed a 1 TB hard drive in my computer last mounth and i keep getting Rundll32 has stoped working, ram seams to be around 40 - 50% usage at all times. I've looked on the net and it says its a easy fix but all the programs i've tryed to use ether wont run on a 64bit system or do nothing. Please help me i'm at my wits end and getting really tired of this problem and lack of performance