xforms use of X error handlers is incompatible with Qt's (they both do it). As a result, you can and do experience random crashes with the Qt frontend, usually after closing a file dialog. There is no workaround for this until xforms is not built in, other than starting lyx with : lyx -sync which seems to remove the problems. so beware ;) thanks john -- "Premature generalization is the root of all evil." - Karl Fogel