My old computer finally ended up face down in the dirt (it died). This new one isn't state of the art but it is miles ahead of my old one. It is an AMD dual core and runs Windows 7, 64 bit. I have been using a null-modem RS-232 cable connected to the back of my 996T for programing. The new computer doesn't have com ports, just USB. I found a USB to RS-232 adapter sold by StarTech. The included driver DOES work with Win 7 64 bit although the info on Amazon only list XP and Vista 32/64. If you have the same problem I had, you might check out this adapter.