Safari Download Speed Problem

I've got a real odd problem with safari 4.

For some reason it is cutting my download speeds in about 1/2 from my server and many other places.

If I restart safari I will be able to download close to my 18 Mbps for a little bit but then it will just start to slow down and after about 30 minutes it will be down to about 6 - 8 Mbps.

Any one got any ideas why this would happen?

 

Thats not true. Download speeds can be very constant with the right connection and tweaks.

This is something that happened recently with in the last 2 days and its only on this computer, it does it in firefox but its not as bad.

Anyone?

I've been trying to fix this for 2 days and its still the same.

On my windows notebook I can download at almost 2 MB/s from my server, but on my Macbook Pro I can't break 700 KB/s and the windows notebook is on WIFI.

I just uninstalled safari 4 and had safar3 and I was able to download at over 1.5 MB/s then put safari 4 back on and its back down to under 700 KB/s.