--- ray/src/px/ximage.c	1989/04/21 08:44:05	1.5
+++ ray/src/px/ximage.c	1989/07/24 10:45:12	1.8
@@ -137,9 +137,7 @@ char  *argv[];
 			sprintf(errmsg, "can't open file \"%s\"", fname);
 			quiterr(errmsg);
 		}
-	} else
-		goto userr;
-
+	}
 				/* get header */
 	getheader(fin, headline);
 				/* get picture dimensions */
@@ -347,7 +345,7 @@ redraw(x, y, w, h)			/* redraw section of window */
 int  x, y;
 int  w, h;
 {
-	if (map_rcolors(ourras) == NULL) {
+	if (ourras->ncolors && map_rcolors(ourras) == NULL) {
 		fprintf(stderr, "%s: cannot allocate colors\n", progname);
 		return(-1);
 	}
@@ -431,6 +429,7 @@ XKeyEvent  *ekey;
 		getras();
 	/* fall through */
 	case CTRL(R):				/* redraw */
+	case CTRL(L):
 		XClear(wind);
 		return(redraw(0, 0, width, height));
 	case ' ':				/* clear */
@@ -690,7 +689,7 @@ pixel  *l;
 }
 
 
-picreadcm(map)			/* do gamcor correction */
+picreadcm(map)			/* do gamma correction */
 colormap  map;
 {
 	extern double  pow();