--- ray/src/util/do_file.tcl	1994/12/06 15:54:45	2.3
+++ ray/src/util/do_file.tcl	1995/03/21 16:19:26	2.7
@@ -167,7 +167,7 @@ proc load_vars {f {vl all}} {	# load RIF variables
 		set curmess {Project loaded.}
 	} else {
 		foreach n $vl {
-			set radvar($n) {}
+			catch {unset radvar($n)}
 		}
 		while {[gets $fi curli] != -1} {
 			if [regexp {^[a-zA-Z][a-zA-Z0-9]* *=} $curli] {
@@ -242,6 +242,11 @@ proc newsave f {		# save a RIF
 			return 0
 		}
 	}
+	if {[file exists $f] && ! [file writable $f] && 
+			[catch {exec chmod u+w $f} curmess]} {
+		beep
+		return 0
+	}
 	if [save_vars $f] {
 		set rifname [pwd]/$f
 		set readonly 0
@@ -282,8 +287,8 @@ proc do_file w {
 	pack $w.left -side left
 	button $w.left.load -text LOAD -width 5 \
 			-relief raised -command {newload $curfile}
-	button $w.left.save -text SAVE -width 5 \
-			-relief raised -command {newsave $curfile}
+	button $w.left.save -text SAVE -width 5 -relief raised \
+			-command "newsave \$curfile; update_dir $w.right"
 	button $w.left.new -text NEW -width 5 \
 			-relief raised -command {newnew $curfile}
 	pack $w.left.load $w.left.save $w.left.new -side top -pady 15 -padx 20