I got this configuration from the EpiServer people
tinyMCE.init( {
"mode":"exact",
"dialog_type":"window",
"convert_urls":false,
"language":false,
"content_css":"",
"style_formats":"",
"entities":"160,nbsp",
"theme":"advanced",
"theme_advanced_layout_manager":"RowLayout",
"theme_advanced_container_editorcontainer":"mceEditor",
"theme_advanced_container_statusBar":"mceElementpath",
"theme_advanced_containers_default_align":"left",
"theme_advanced_resizing_use_cookie":false,
"theme_advanced_path":true,
"theme_advanced_resizing":true,
"theme_advanced_containers":"row1,
row2,editorcontainer,statusBar",
"theme_advanced_statusbar_location":"bottom",
"epiImageEditor_dialogWidth":900,
"epiImageEditor_dialogHeight":600,
"epidynamiccontent_enabledcontrols":"epidynamiccontent, code, undo, redo, cut, copy, fullscreen",
"extended_valid_elements":"span[contenteditable\u003cfalse|data-hash|data-state|data-dynamicclass|disabled|data-classid|data-groups|data-contentgroup|id|class|style|title|dir\u003cltr?rtl|lang|xml::lang|onclick|ondblclick|onmousedown|onmouseup|onmouseover|onmousemove|onmouseout|onkeypress|onkeydown|onkeyup|align\u003ccenter?justify?left?right|contentEditable|state|dynamicclass|classid|hash],div[contenteditable\u003cfalse|data-hash|data-state|data-dynamicclass|disabled|data-classid|data-groups|data-contentgroup|id|class|style|title|dir\u003cltr?rtl|lang|xml::lang|onclick|ondblclick|onmousedown|onmouseup|onmouseover|onmousemove|onmouseout|onkeypress|onkeydown|onkeyup],#td[colspan|rowspan|width|height|align|valign|bgcolor|background|bordercolor|scope|axis|headers|abbr|id|class|style|title|dir\u003cltr?rtl|lang|xml::lang|onclick|ondblclick|onmousedown|onmouseup|onmouseover|onmousemove|onmouseout|onkeypress|onkeydown|onkeyup],#th[colspan|rowspan|width|height|align|valign|scope|axis|headers|abbr|id|class|style|title|dir\u003cltr?rtl|lang|xml::lang|onclick|ondblclick|onmousedown|onmouseup|onmouseover|onmousemove|onmouseout|onkeypress|onkeydown|onkeyup],strong[class|dir\u003cltr?rtl|id|lang|onclick|ondblclick|onkeydown|onkeypress|onkeyup|onmousedown|onmousemove|onmouseout|onmouseover|onmouseup|style|title]/b,iframe[align\u003cbottom?left?middle?right?top|class|frameborder|height|id|longdesc|marginheight|marginwidth|name|scrolling\u003cauto?no?yes|src|style|title|width]",
"epipersonalizedcontent_enabledcontrols":"epipersonalizedcontent, code, undo, redo, cut, copy, fullscreen",
"width":"614px",
"height":"300px",
"skin":"epi-light",
"epi_page_context":{"id":"16620_857056","parentId":"1","pageFolderId":"22385","epslanguage":"en-GB","pageTypeId":201},"plugins":"epilink,epiimageeditor,media,epidynamiccontent,epipersonalizedcontent,epiquote,paste,table,fullscreen,searchreplace,advimage,epifilebrowser,epiaccesskeysremove,epieditordisable,,episearchreplace,epistylematcher,epivisualaid,epitrailing,epipageleavecheck,epifilemanagerdragdrop,epiexternaltoolbar,epiwindowmanager","theme_advanced_container_row1":"epilink,unlink,anchor,image,epiimageeditor,media,epidynamiccontent,epipersonalizedcontent,epiquote,separator,cut,copy,paste,pastetext,pasteword,separator,table,delete_table,row_props,cell_props,separator,col_before,col_after,delete_col,separator,row_before,row_after,delete_row,separator,split_cells,merge_cells","theme_advanced_container_row2":"bold,italic,underline,separator,justifyleft,justifycenter,justifyright,separator,bullist,numlist,hr,formatselect,undo,redo,separator,cleanup,code,visualaid,fullscreen,search","elements":"ctl00_FullRegion_PC_45_1_EditForm_FreeText_ctl00","editorwidth":"614px"}
);
Rather long configuration - to add is that we our cms is multi language - and the issue we have is on asian languages