On my testing machine I experience no problems with using
http://developers.arcgis.com/javascript/samples/featuretable/
but if I run the same example on my client's machine I get "'require' is undefined".
I also experience the same issue with all of their 3.12 examples. Only 3.1 examples seem to work on my client's machine.
Update: It also works just fine in FF and Chrome on client machine