When a new anchor is created and an anchor name is set via the Hyperlink Manager tool of RadEditor, the 'name' attribute will not be applied under IE7. Under IE8 the specified anchor name is set to a 'submitname' attribute of the anchor element.

The desired behavior cannot be achieved out of the box with the content provider from this KB article, because the paths to the images are passed to a generic handler.
The main reason it can't be achieved at the moment is that the latest moment of the page life-cycle of the FileBrowser.ascx dialog, when the user can set the FileExplorer's InitialPath is before the Page_Load event, but the path to the preselected in the Editor item is passed in the Page_Load event and the initial path is reset internally.

When the AutoResizeHeight property of Editor is set to True, pressing enter resizes the content area without reaching the bottom of the content area. The bug can only be reproduced in IE9 and IE10.

video: http://screencast.com/t/3mCkQNTC

When a custom font is used in the RadEditor and the cursor is positioned on text that uses this font, the font name that is displayed in the Font Name dropdown will not be correct under IE.

When a table of any size is inserted in RadEditor, the user's cursor is placed in the beginning of the document and is, thus, scrolled to the top.

The issue appears in all versions of Internet Explorer in which the Document Mode is set to IE7 and IE8.

The same behavior is observed when pasting content in a table.

Issue caused by: RadPanelBar, ContentAreaMode="Div"

When RadEditor is placed in a contracted RadPanelBar and RadEditor's ContentAreaMode is set to Div, upon the panel's expansion, RadEditor's height shrinks and JavaScript errors are thrown.

Occurs in: IE7 and IE8.

The 'Link Text' text box does not always appear in the Link Manager of RadEditor in IE. Behavior is observed when text in an inline element is selected and Link Manager is opened.

When the cursor is at the beginning of H2 element and enter key is pressed, the RadEditor adds additional H2 element in NewLineMode='Br'.

Under firefox a request for the stylesheet is made but it is never received.

Currently, the following workaround resolves the issue:

           if ($telerik.isFirefox) {
               setTimeout(function(){
                       sender.onParentNodeChanged()
                       }, 500);
           } else {
               sender.onParentNodeChanged();
           }

Code for test:
<ol>
    <li>test
    <ol>
        <li>test </li>
    </ol>
    </li>
</ol>

1. Go to the end of the nested list and press 'Enter' twice

2. The nested list is discontinued but by pressing Enter the parent list can not be discontinued.

Steps to reproduce:
1. Insert two lists
<ol>
    <li>test1</li>
</ol>
<ol>
    <li>test2</li>
</ol>
2. Copy the first list
3. Insert one more list item in the second list and paste the first list
Expected:
<ol>
    <li>test1</li>
</ol>
<ol>
    <li>test2</li>
    <li>test1</li>
</ol>
Actual:
<ol>
    <li>test1</li>
</ol>
<ol>
    <li>test2</li>
    <li>
    <ol>
        <li>test1</li>
    </ol>
    </li>
</ol>

When RadEditor is disabled from the client-side (enableEditing and set_editable are set to false) the user is still allowed to indent the content using the Tab key in Internet Explorer. 

After upgrading to Q2 2003.2.611, I receive this error when an editor is being rendered, whether in a grid as a columntype, or standalone editor. If I remove the column, my popup comes up fine. I've even tried using the latest internal build to no avail.

Error: Unhandled exception at line 3407, column 1 in http://localhost:46674/Telerik.Web.UI.WebResource.axd?_TSM_HiddenField_=ctl00_rsmMaster_TSM&compress=1&_TSM_CombinedScripts_=;;Telerik.Web.UI,+Version=2013.2.709.45,+Culture=neutral,+PublicKeyToken=121fae78165ba3d4:en-US:69657036-201e-4b8d-ba50-faac1961b436:1569bb5f:63b115ed:874f8ea2:dc7e0bd:30f1f089:92fe8ea0:fa31b949:19620875:490a9d4e

0x800a01b6 - JavaScript runtime error: Object doesn't support property or method 'registerControlProperties'

Under IE the get_text() retrieves only one word if there are many in the cells of a table.

This breaks the result of the RadEditorStatistics tool.

Steps to reproduce:
1.Type some text in the content of the editor;
2.Press Accept All Track Changes button;
3.Type some other text between two words of the previous text;
4.Press Accept All Track Changes button;

Similar to the RadComboBox' OnClientFocus event - http://www.telerik.com/help/aspnet-ajax/combobox-onclientfocus.html