lib/scripts/isa-xterm

 fi
 
 PASS="$PASS_MODE $PASS"
 
 if [ -z "$SYMBOLS" -o "$SYMBOLS" = false ]; then
-  exec $XTERM -T Isabelle -n Isabelle -geometry "$MAINGEOM" -e \"$ISABELLE\" $PASS "$@"
+  exec $XTERM -T Isabelle -n Isabelle -geometry "$MAINGEOM" -e "$ISABELLE" $PASS "$@"
 else
   $ISATOOL installfonts
   exec $XTERM -T Isabelle -n Isabelle -geometry "$MAINGEOM" -fn isabelle14 \
     -xrm "*fontMenu.Label: Isabelle fonts" \
     -xrm "*fontMenu*font1*Label: Large" \

     -xrm "*VT100*font4:" \
     -xrm "*fontMenu*font5*Label:" \
     -xrm "*VT100*font5:" \
     -xrm "*fontMenu*font6*Label:" \
     -xrm "*VT100*font6:" \
-    -e \"$ISABELLE\" -m isabelle_font -m symbols $PASS "$@"
+    -e "$ISABELLE" -m isabelle_font -m symbols $PASS "$@"
 fi