Possibly a difference in configurations between the two browsers. Go through IE's tools-->Internet Options-->security-->custom level and compare settings.
More likely though would be something on the physical layer. Is one wi fi and the other not?? Are both NIC's full duplex?
If I\'m curt with you, it\'s because time is a factor. I think fast. I talk fast. And, I need you guys to act fast if you wanna get out of this. So, pretty please with sugar on top, clean the fu**ing car- Winston Wolf, Pulp Fiction