Hi Ken, I can't find the email you sent with the parameters of your graphic card. Here are the parameters I get: 0> GL_MAX_LIST_NESTING __ 64 0> GL_MAX_EVAL_ORDER __ 10 0> GL_MAX_LIGHTS __ 8 0> GL_MAX_CLIP_PLANES __ 6 0> GL_MAX_TEXTURE_SIZE __ 16384 0> GL_MAX_PIXEL_MAP_TABLE __ 256 0> GL_MAX_ATTRIB_STACK_DEPTH __ 16 0> GL_MAX_MODEL-VIEW_STACK_DEPTH __ 32 0> GL_MAX_NAME_STACK_DEPTH __ 100 0> GL_MAX_PROJECTION_STACK_DEPTH __ 5 0> GL_MAX_TEXTURE_STACK_DEPTH __ 5 0> GL_MAX_VIEWPORT_DIMS __ 16384 Can't find anything obviously odd but maybe I don't know what to look for... Can you send yours again? Tnx! Another question: Do you do a call-next-method in togl-create-using- class ? I find it useful to do so due to the init done in ix-togl's corresponding method... Likewise for the togl-display-using-class function. Any feedback on this? Thx! Frank