I'm not sure if you can help me but I've just upgraded to Vista Ultimate and all is fine with my PC and it is running like a dream. However, my download speed is worse than some dial-up. As we speak I am trying to download windows live messenger and I'm only averaging 6kbps. I'm on 24meg Be Broadband and I can usually get much faster than that but since I've upgraded it's going really slow.
Just to rule things out I have set all my IE security to the lowest possible and turned off windows firewall but that hasn't sped things up (not that I expeted it to).