Seems the monitor repair co couldn't help with my display problem originating in the TNC 151 controller............
Phoned Heidenhain, no problem, have a service exchange, at a price, that by the sound of it, includes a milling machine as well !!!
Plan 2, send in for repair, comment was that its a common problem , and yet another bargain price !!!
Plan 3, anyone out there got a 151 they don't want, or want to sell for a considerable amount of wad, or know how to fix the non display problem, or got any boards they don't want or need
Hopefully, this time my post will be visible to me !!! Bob