I'm having an odd issue where the Webcombo results always go up on the page even if the webcombo control is at the very top of a page.  To simplify troubleshooting I created a brand new blank webform aspx page and it does the same thing.  An example screenshot is attached.  You'll notice the dropdown goes up in direction instead of down.  This happens even if the webcombo is at the top of the form and makes it so you can't see the values in the list.