Go here
http://cutesoft.net/example/general.aspx
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Insert to content
<bgsound cep="0"> </bgsound>
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Error: TypeError: Ox2d is undefined<br>Source File: http://cutesoft.net/CuteSoft_Client/CuteEditor/Load.ashx?type=scripts&file=Gecko_Loader
Any action against the content will generate that JS error.