I am on a clean Vista install. Finally worked out all my network issues using Network Magic. Using IE7, I can browse any site for about 20 minutes then get a hourglass or waiting. I can be browsing threads in this site and then all of a sudden a complete slowdown to the point where the connection times out. Usually I wait a minute or so and then everything works fine.I have very little running on the machine. I have turned of sidebar. I looked at task manager for anything obvious hogging the network or system but nothing really looks obvious.I downloaded Firefox and thought it went away but got hit with it again.Any suggestion, ideas on what to try next?