You may known that we do not officially support IE browser "emulated" modes but only the actual IE browsers. This is due to the fact that browser modes does not always behave the same as the actual browser.
Regarding the issues you have described. It seems that the buttons are only displayed in the described manner in the jsbin (but no when the page is viewed separately), thus this seems to be issue with the jsbin itself. The checkbox behavior seems to be resolved when the latest Q1 2013 SP1 version of KendoUI is referenced. Therefore, you may consider upgrading to this version.
the Telerik team
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