diff --git a/lib/libdvbsub/dvbsubtitle.cpp b/lib/libdvbsub/dvbsubtitle.cpp
index b889403f1..279e2bc77 100644
--- a/lib/libdvbsub/dvbsubtitle.cpp
+++ b/lib/libdvbsub/dvbsubtitle.cpp
@@ -243,14 +243,14 @@ void cDvbSubtitleConverter::Pause(bool pause)
 
 void cDvbSubtitleConverter::Clear(void)
 {
-	dbgconverter("cDvbSubtitleConverter::Clear: x=% d y= %d, w= %d, h= %d\n", min_x, min_y, max_x-min_x, max_y-min_y);
 	if(running && (max_x-min_x > 0) && (max_y-min_y > 0)) {
+		dbgconverter("cDvbSubtitleConverter::Clear: x=% d y= %d, w= %d, h= %d\n", min_x, min_y, max_x-min_x, max_y-min_y);
 		CFrameBuffer::getInstance()->paintBackgroundBoxRel (min_x, min_y, max_x-min_x, max_y-min_y);
 		/* reset area to clear */
 		min_x = screen_w;
 		min_y = screen_h;
 		max_x = screen_x;
-		max_y = screen_h;
+		max_y = screen_y;
 	}
 }