Fix *DUH* problem causing lots and lots of unnecessary AllocColor errors.

diff --git a/msdos/int10.c b/msdos/int10.c
index d879d47..aea978f 100644
--- a/msdos/int10.c
+++ b/msdos/int10.c
@@ -86,6 +86,8 @@
         color_pallet[13] = CONSOLE_AllocColor(WINE_LIGHT_MAGENTA);
         color_pallet[14] = CONSOLE_AllocColor(WINE_YELLOW);
         color_pallet[15] = CONSOLE_AllocColor(WINE_WHITE);
+
+        registered_colors = TRUE;
     }
 
     switch(AH_reg(context)) {