ICS windows XP

ICS and PS2 setup
I have a ps2 that I want to connect to the internet via my windows xp pc, the cable modem from my ISP is connected to my XP box using USB, I have another NIC then connected to my PS2.

When I try to share the connection using ICS, i get the following error when i try to enable the ICF:

“An error has occurred while internet connection sharing was being enabled.

The dependency service or group failed to start.”

Any help would be much appreciated.

Thanx

j