Try to check the markup for in the DOM for that element in chrome and in IE from there you can get the clue that which particullar part/section/div is not there and then you can check that in your design. Is the issue occring with specific widget or with all the widgets?
As per your screen shot , Probably the markupo is not generated completely. You can check for the tracer when you launch this section/portal .If there is any difference in that or not for both the browser.
Also check by including with the latest UI KIt in you Application skin.