Getting a little nervous. When I save a drawing it's about 50/50 that I get a message saying AutoCad cannot save the drawing and then it saves it with the random auto save number. Right after that I hit the save button and it's saved (qsave). The drawing was done with cadpipe 2000 & Acad 2002. I'm thinking the cadpipe solids got corrupted somehow and that's causing it. Anyone seen this before? Rudy