I have ran it with every set up except firewalls and I have not experianced any problems with XoloX and WinXP. I would suggest that you check security settings and such. They might be set too high. If that is not the case then check you modem and connection. If you are using a router then this could be the problem. Routers tend to block p2p filesharing sometimes. If all of this checks out then I have no clue what to tell you other than I must have gotten a special version of 1.20.

Ironman