I'm running Autocad Lt 97 on a Windows XP computer. I'm running into a problem making more than 15 viewports within a drawing? Does anyone know if there is a setting or something that I've missed? It will let me do 15 viewports, but once I do that 16th one (page of details), then things disappear out of another viewport and I can't seem to get it back until I delete that 16th viewport. Thanks in advance. Kim in TX