If iNotes 9 is loaded in IE9 in the WebSphere Portal DWA portlet, is does not show properly. In fact it shows almost nothing. When the same page is opened in FF or Chrome - it works OK.
Subject: iFrame support in IE9
IE9 has changed how IE handles iframes and that is the cause of this issue. The portlet will run fine if you are running in a compatibility mode. I have included the link to the IBM Support statement below. I believe there is also a Portal support statement about how to modify certain .jsp and jspf files to take care of this, but I have not been able to locate it. I will try and find it and post that too. Let me know if that helps your situation or if you have other questions.