ctbram, u guess wrong not this error, i check the maximum value and try on it, ntg do to with this.. i have pic shot pls have a look tq. and the error i get is this.. // Error: Select a subdivision surface which you want to tessellate. // optionVar -q "scriptEditorKeywordsFile"; // Result: 0 // createModelPanelMenu modelPanel4; buildPanelPopupMenu scriptEditorPanel1;