Today I took my Athlon 64 3200+ and replaced it with a dual core 3800+ (this is a socket 939 system). Everything went smoothly, system powered up, and cpu temperature is at 33c. My BIOS (which the latest and last for my mobo) is for dual core. I logged on to the internet and at first no issues for about 3 minutes but then I noticed I couldn't access sites. It was like my internet connection just froze. Figuring it was one of those occasional needs to reset the router/modem I reset both by unplugging the power for 10 sec. Nothing changed even after reset. I figured it was a dual core thing and so I installed the Windows hotfix for XP and dual cores. I also installed the AMD Dual Core Optimizer. When I rebooted I was able to log on to the internet but accessing Amazon.com or even my mail is either really slow or froze. When I tried to log on here loading time was agonizingly slow to the point I had to disable the firewall in order to log on. I have changed nothing with my system other than the CPU. I am at a loss. Could the firewall be the issue by the fact my hardware has changed? I doubt it but as I said I am at a loss. Thanks in advance. Edit: Never mind. I was over at the Overclockers forums and happened to look in on their Internet & Networking forum and there at the top was the subject South Jersey Comcast. It seems others were having internet issues with the Comcast Evil Empire as well.