fix OSD Problems on dxr3 cards
http://www.vdr-portal.de/board/thread.php?postid=517188#post517188

Joerg Bornkessel <hd_brummy@gentoo.org> 24 Oct 2006

diff -Naur weatherng-0.0.8-pre3.orig/OsdWeather.c weatherng-0.0.8-pre3/OsdWeather.c
--- weatherng-0.0.8-pre3.orig/OsdWeather.c	2006-10-24 13:46:22.850099968 +0200
+++ weatherng-0.0.8-pre3/OsdWeather.c	2006-10-24 13:57:12.446697218 +0200
@@ -379,7 +379,7 @@
 
 #endif               
 */
-		colordepth  =  16;
+		colordepth  =   7;
 		areadepth   =   4;
 
 		tArea Area[] = {