New IE7 KB articles
HOTFIX: On a computer that has IE7 installed, the security zone of the network drive that you map by using the subst command appears as "Internet"
On a computer has Windows Internet Explorer 7 installed, you create a disconnected network drive by running the subst command at a command prompt. When you open this network drive in Windows Explorer, it appears as Disconnected Network Drive. Additionally, the security zone for the network drive appears as Internet in the status bar.
However, on a computer that has Internet Explorer 6 installed, the security zone of the network drive appears as Local Intranet in the status bar.
Note This behavior also occurs if you map a network drive by using the system context.
This issue is caused by a design change in Internet Explorer 7.
When you map a network drive, the operating system tries to obtain the name of the network share so that the operating system can determine whether the security zone of the network share is Internet or Intranet. This action may fail when you use the subst command or when you map a drive in the system context. If the operating system cannot obtain the share name on a computer that has Internet Explorer 7 installed, the system sets the security zone of the network share to Internet. Therefore, this problem occurs.
By contrast, if the operating system cannot obtain the share name on a computer that has Internet Explorer 6 installed, the system sets the security zone of the network share to Local Intranet.
http://support.microsoft.com/default.aspx/kb/941000
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HOTFIX: When you use IE7 to visit a web page that contains IFRAME elements, the contents of an edited IFRAME element are not rendered correctly
Consider the following scenario:
• You develop a Web page that contains IFRAME elements.
• To make the Web page editable, you set the DesignMode property for an IFRAME element to ON.
• You set the width property and the height property for the IFRAME element as a percentage value.
When you use Windows Internet Explorer 7 to visit the Web page in this scenario, you notice that the contents of the IFRAME element are not rendered correctly. Instead, the IFRAME element is blank. Or, you cannot edit the contents of the IFRAME element even if the contents are displayed.
http://support.microsoft.com/default.aspx/kb/943245