--- old/src/java.desktop/windows/native/libawt/java2d/d3d/D3DVertexCacher.cpp	2016-09-05 13:25:57.768289500 +0300
+++ new/src/java.desktop/windows/native/libawt/java2d/d3d/D3DVertexCacher.cpp	2016-09-05 13:25:57.111289500 +0300
@@ -109,12 +109,13 @@
 
 // Horiz/vertical
 #define HV_FF1 ( 0.0f)
-#define HV_FF2 ( 0.51f)
+#define HV_FF2 ( 0.501f)
 // For the record: value below (or larger) is required for Intel 855, but
 // breaks Nvidia, ATI and Intel 965, and since the pipeline is disabled on
 // 855 anyway we'll use 0.51f.
 //#define HV_FF2 ( 0.5315f)
 #define HV_FF3 (-0.2f)
+#define HV_FF4 ( 0.51f)
 // single pixel
 #define SP_FF4 ( 0.3f)
 
@@ -251,10 +252,10 @@
             fx2  = fx1;
             if (y1 > y2) {
                 fy1 = (float)y2+HV_FF3;
-                fy2 = (float)y1+HV_FF2;
+                fy2 = (float)y1+HV_FF4;
             } else {
                 fy1 = (float)y1+HV_FF3;
-                fy2 = (float)y2+HV_FF2;
+                fy2 = (float)y2+HV_FF4;
             }
         } else {
             // diagonal
@@ -447,9 +448,9 @@
         // horiz: bottom left - bottom right
         ADD_LINE_XYC(fx1+1.0f+HV_FF3, fy2+HV_FF1, fx2+HV_FF2, fy2+HV_FF1,color);
         // vert : top right - bottom right
-        ADD_LINE_XYC(fx2+HV_FF1, fy1+HV_FF3, fx2+HV_FF1, fy2-1.0f+HV_FF2,color);
+        ADD_LINE_XYC(fx2+HV_FF1, fy1+HV_FF3, fx2+HV_FF1, fy2-1.0f+HV_FF4,color);
         // vert : top left - bottom left
-        ADD_LINE_XYC(fx1+HV_FF1, fy1+1.0f+HV_FF3, fx1+HV_FF1, fy2+HV_FF2,color);
+        ADD_LINE_XYC(fx1+HV_FF1, fy1+1.0f+HV_FF3, fx1+HV_FF1, fy2+HV_FF4,color);
     }
     return res;
 }