I use an USB modem. It works fine on this computer(win98) which I'm using now. But when I'm using it on my other computer(xp), the modem speaker makes unusual noises. And when connected to the net, any browser on that computer cannot find most of the web sites. This started to happen when I re-installed windows lately. I ran the troubleshooter but it can't solve the problem. Anyone know what's the reason for this?