This is a solution for the Selenium Webdriver Type command not working on IE when you are trying to enter some text in a rich text editor. You can use the below code to execute the command in IE and other browsers.
((JavascriptExecutor)driver).executeScript("document.getElementById('ElementID').value='TextValue'");
The rich text editor is usually placed in a iFrame.
can u provide us an example of it.. it would be helpful…