So I'm running Land Desktop 2007, PLINETYPE is set to 2, HOWEVER.... Older plines are NOT automatically being updated to the newer LWPOLYLINEs. What would prevent this from happening? Reason I'm asking is, we have a site plan that was giving us all sorts of grief. There was a POLYLINE and a LWPOLYLINE crossing each other. The POLYLINE had to be trimmed, but every time we tried, LDT would SH*% the bed and we'd back to square one. When I ran the CONVERT command and selected the POLYLINE in question, it worked when trying to trim it. What the dilly-o??!?