Error message is generated when interacting with Home Page and also when clicking the About icon in the Help tab of the ribbon.
"The ordinal 459 could not be located in the dynamic link library urlmon.dll."
problem with environment
You can first try to re-register the offending .dll (Click Start, and then click Run, then type regsvr32 urlmon.dll, and then click OK ).
Otherwise, apply missing Microsoft patches. MS might require reboot.