Hey Greg,
As stated in my first post I ran the task manager and no process was taking up any significant amount of CPU. The system idle proccess was in the 90s the whole time.
Further the "Resource Monitor" in vista is quite different from the task manager in Vista, XP, or 2k3. Attached is a picture of the behavior I'm experiencing. This is a screen shot of the resource monitor. You can use it to drill down into offending processes broken down by disk, cpu, network, and memory usage. 2k3 does not have anything like this.
So as you can see the transfer speed runs well at over 500mbit, then slows down to about 50 for the same amount of time, then back up to 500mbit.
Prior to PP1 the transfer speed was very consistant and did not fluctuate like this.
Anyone else experience this behavior?
Thanks!
Michal