--- a/bitmaps/CheckOn.xbm	Wed Mar 19 11:19:42 1997 +0100
+++ b/bitmaps/CheckOn.xbm	Wed Mar 19 11:22:45 1997 +0100
@@ -1,6 +1,6 @@
 #define CheckOn_width 16
 #define CheckOn_height 16
-static char CheckOn_bits[] = {
+static unsigned char CheckOn_bits[] = {
    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x30, 0x00, 0x38,
-   0x00, 0x1c, 0x0c, 0x1e, 0x18, 0x0f, 0x98, 0x07, 0xf0, 0x03, 0xf0, 0x01,
-   0xe0, 0x00, 0x60, 0x00, 0x00, 0x00, 0x00, 0x00};
+   0x00, 0x3c, 0x06, 0x1e, 0x0e, 0x0f, 0x9c, 0x07, 0xf8, 0x03, 0xf0, 0x01,
+   0xe0, 0x00, 0x40, 0x00, 0x00, 0x00, 0x00, 0x00};