Hi Ingar, Thanks for your reply. The layout from world scientific in lyx's wiki is not same in term of page margin. The one for this particular conference is slightly smaller.
Yesterday, I try to reinstall a fresh copy of MacTex & LyX in my laptop with hope that lyx will be able to locate & understand the 'ws-procs.cls' & 'ws-procs.layout' properly. However, new problem appear. When I try to change setting in Lyx:Document Setting to 'manuscript (ws-procs9x6)', a dialog box 'The document class ws-procs9x6 could not be loaded.' Then another dialog box 'Unable to set document class.' What happen actually?
