Desktop with XP SP2, has been working for many months. No known recent changes, but IE stopped working, giving an "Internet Explorer cannot display the web page".
Test pinging to outside DNS, which works okay. Pinging local default gateway works okay. Nslookup to various places provides IP addresses.
Brought several antivirus packages in via USB, found and removed some trojans. System shows as clean now.
Brought Firefix in from USB, same symptoms -- fails to connect.
With either browser, typing IP addresses connectsw to page, but images not downloaded.
Brought winsockxpfix from USB, ran, rebooted. Same symptoms remain.
Anyone seen this before? Probably as a result of trojan infection. (Trojan.FakeAlert, Trojan.BHO, Trojan. zlob).