rcPaint has to be returned in logical coordinates but was intersected
with a client rectangle in device coordinates.

windows/painting.c

diff --git a/windows/painting.c b/windows/painting.c
index 7691909..5a65275 100644
--- a/windows/painting.c
+++ b/windows/painting.c
@@ -327,9 +327,12 @@
        than the window itself, so we need to intersect the cliprect with
        the window  */
     
-/*    GetClipBox16( lps->hdc, &lps->rcPaint );*/
     GetClipBox16( lps->hdc, &clipRect );
     GetClientRect16( hwnd, &clientRect );
+
+    /* The rect obtained by GetClipBox is in logical, so make the client in logical to*/
+    DPtoLP16(lps->hdc, (LPPOINT16) &clientRect, 2);    
+
     IntersectRect16(&lps->rcPaint, &clientRect, &clipRect);
 
     TRACE_(win)("box = (%i,%i - %i,%i)\n", lps->rcPaint.left, lps->rcPaint.top,