I am (repetitively) cutting with ctrl+x lines from one objects ucs to another. Since looking at GeomCurve (I think?) I can no longer paste with the objects base point (UCS 0,0,0) . This appears to have stuck with the WCS (when a line is cut using the UCS and origin on the line). On investigation Insbase also resets with each new UCS to an x,y,z related to the WCS. A similar thing has happened in the past when turning off the ucs icon but has been sorted by fiddling with ucsicon . Its not stopping me work but thanks in advance, Mike