OK, here is a mystery for you all. I have a fairly new (Sept 07) MBP 2.2, 10.5.2. I use this machine all the time. I ran SpeakEasy speed tests and got consistently low upload speeds, about 190-225. Download was good, but upload below expected. Had ATT check lines, DSL modem, and was getting 400+ uploads to house. Must be inside wires they said. I have Parallels running Vista on the MBP. I also have a new MB 2.0, 10.5.2 (wife's), and an older Sony Vaio desktop. So, I ran SpeakEasy tests with them. All of them had 400+!!! Only when I am using 10.5.2 do I see the lower upload speeds. Even when I am on the SAME MBP, but running Vista, I get expected speeds. What's up?