If anyone using IE is having a problem with buttons not working (or anything else for that matter) try changing the setting for Compatibility Mode. In the IE menu, select Tools > Compatibility View.
For example, I could not get to the search screen when using IE, click on the button at the top of the page and nothing would happen. Works fine in Firefox and Chrome.
Thanks - Should be fixed now. Still requiring a little bit of testing for confirmation. ~ BFM_dStruct