I am using a standard dial up modem which worked fine until i had a problem with the hard drive on my computer. I ended up reformatting the hard drive and starting again with the same software. It has XP Pro with SP1. When I dial up now it connects no problem and works fine for a minute or 2, but then it stops all data transfer. The connection remains but no data goes either way and it is unresponsive to clicks on anything, though it doesn't actually hang. I have tried using a different modem, and different PCI slots, but the same thing happens. I have also tried using different computers dialing up to the same ISP and the same login and they do not have any problems. I can only assume it is some sort of software problem or setting problem but have no idea where to start. Any advice would be most useful.