diff -r 747177b67670 -r 7dc83c3d751a lib/scripts/isa-xterm
--- a/lib/scripts/isa-xterm	Tue Dec 17 12:52:33 1996 +0100
+++ b/lib/scripts/isa-xterm	Tue Dec 17 12:53:14 1996 +0100
@@ -17,9 +17,10 @@
 ## main
 
 if [ -z "$ISABELLE_SYMBOLS" -o "$ISABELLE_SYMBOLS" = false ]; then
-  exec xterm -T Isabelle -n Isabelle $ISABELLE_INTERFACE_OPTIONS -e isabelle "$@"
+  exec xterm -T Isabelle -n Isabelle $ISABELLE_INTERFACE_OPTIONS \
+    -e $ISABELLE_HOME/bin/isabelle "$@"
 else
-  isatool installfonts
+  $ISABELLE_HOME/bin/isatool installfonts
   exec xterm -T Isabelle -n Isabelle $ISABELLE_INTERFACE_OPTIONS -fn isacr14 \
     -xrm "*fontMenu.Label: Isabelle fonts" \
     -xrm "*fontMenu*font1*Label: Large" \
@@ -34,5 +35,5 @@
     -xrm "*VT100*font5:" \
     -xrm "*fontMenu*font6*Label:" \
     -xrm "*VT100*font6:" \
-    -e isabelle -e 'print_mode:=["symbols"];' "$@"
+    -e $ISABELLE_HOME/bin/isabelle -e 'print_mode:=["symbols"];' "$@"
 fi