Soyo P4X400, Intel Celeron 2.8GHz, 760MB Memory, 60GB and 250GB HDDs, Realtek NIC to Embarq 660Series Modem, ADSL, XP PRO, Spybot S&D, Windows BitDefender, ZoneAlarm firewall, AVG Free AntiVirus and AVG AntiSpyware. Ran online and offline scans and found nothing. When I haven’t accessed the internet recently, just playing games locally, when I then go to check HotMail, Google, or anything else online, the computer will not load pages from the internet. Thought maybe the NIC was going to sleep and not waking up, so I replaced the Compaq NIC (which had no provision to turn off to save energy) with a Realtek NIC which does have a power-save option in Device Manager. Set it so it would not turn off and still won’t load web pages without a warm reboot. Any and everything works locally. Word, Excel, games, etc. Replaced the Sprint 645 Series ADSL modem with Embarq 660 Series modem. No joy. Tried a “Keep Connected” program to see if that would help. No joy. Set up a “ping” (ping 5 times) batch program and used Task Scheduler to run it every 30 minutes. No joy. Ping sends out 6 packets, receives 6 packets. Still won’t load web pages with IE after inactivity. Changed time interval to ping an internet site to every 10 minutes. Still won’t load web pages after inactivity. Ran “ipconfig /renew” as admin; sends out 7 packets, receives 1 packet. Tried to access Hotmail (IE7); sends no packets, receives none. Reboot, everythings fine. Wife plays cards online for hours at a time; no problem. But if she attempts to play after inactivity, have to reboot.