I was not able to login to broker websites and elitetrader.com using Internet Explorer 7.0 this morning. I also could not connect to email server. I was able to work using Mozilla Firefox. I installed these security updates for Windows XP from Microsoft.com, rebooted the computer and my system appears to be operating normally: Windows Malicious Software Removal Tool - January 2008 (KB890830) Download size: 8.9 MB After the download, this tool runs once to check your computer for infection by specific, prevalent malicious software (including Blaster, Sasser, and Mydoom) and helps to remove any infection found. If an infection is found, the tool will display a status report the next time you start your computer. A new version of the tool will be offered every month. If you want to manually run the tool on your computer, you can download a copy from the Microsoft Download Center or run an online version from microsoft.com. This tool is not a replacement for an anti-virus product. To help protect your computer, you should use an anti-virus product. Details... Security Update for Windows XP (KB941644) Typical download size: 158 KB A security issue has been identified in TCPIP that could allow an attacker to compromise your Windows-based system and gain control over it. You can help protect your computer by installing this update from Microsoft. After you install this item, you may have to restart your computer. Details... Security Update for Windows XP (KB943485)
I actually had the identical problems last night, but everything is back to normal this morning (including using IE to access ET)