I merged new GenSurf source in. Not commited yet .. maybe when you read this mail ^Fishman it will have been commited. Does the new ver fix those following two bugs: http://zerowing.idsoftware.com/bugzilla/show_bug.cgi?id=31 http://zerowing.idsoftware.com/bugzilla/show_bug.cgi?id=32 ? TTimo