Follow these instructions from
Symantec and good luck. Oh, and stop using Internet Explorer, try
Opera.
The following instructions pertain to all current and recent Symantec antivirus products, including the Symantec AntiVirus and Norton AntiVirus product lines.
Disable System Restore (Windows Me/XP).
Delete the added lines from the Windows Hosts file.
Update the virus definitions.
Restart the computer in Safe mode or VGA mode.
Run a full system scan, and delete all the files that are detected as Trojan.StartPage.
Delete the values that were added to the registry.
Reset the Internet Explorer home page.
Reset the Internet Explorer Search page.
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Stop searching for pr0n.

:lol: