I have been working with a VAX780 sim running Unix System V r2 VAX780 and am having strange issues. TERM is defined at vt100 When firing up vi at times the cursor is positioned in the wrong place or when inserting text it over writes areas on the screen. I have tried vt100, vt100-am, vt100-nam and none work as expected. Any ideas? Thanks -Ken Happy holidays -- WWL 📚