diff --git a/Build/Updater.exe b/Build/Updater.exe
index 07981dfb..d9b62a2a 100755
Binary files a/Build/Updater.exe and b/Build/Updater.exe differ
diff --git a/Source/Core/Rendering/Renderer2D.cs b/Source/Core/Rendering/Renderer2D.cs
index 1c8b8404..23ad6721 100755
--- a/Source/Core/Rendering/Renderer2D.cs
+++ b/Source/Core/Rendering/Renderer2D.cs
@@ -968,9 +968,8 @@ namespace CodeImp.DoomBuilder.Rendering
 				pos.y = y;
 				pos = pos.GetTransformed(translatex, translatey, scale, -scale);
 
-				// Note: I'm not using Math.Ceiling in this case, because that doesn't work right.
-				gridplotter.DrawGridLineH((int)pos.y, (int)from, (int)to, ref c);
-			}
+                gridplotter.DrawGridLineH((int)pos.y, (int)Math.Round(from + 0.49999f), (int)Math.Round(to + 0.49999f), ref c);
+            }
 
 			// Draw all vertical grid lines
 			float xstart = ltpos.x > General.Map.Config.LeftBoundary ? ltpos.x : General.Map.Config.LeftBoundary;
@@ -987,9 +986,8 @@ namespace CodeImp.DoomBuilder.Rendering
 				pos.x = x;
 				pos = pos.GetTransformed(translatex, translatey, scale, -scale);
 
-                // Note: I'm not using Math.Ceiling in this case, because that doesn't work right.
-                gridplotter.DrawGridLineV((int)pos.x, (int)from, (int)to, ref c);
-			}
+                gridplotter.DrawGridLineV((int)pos.x, (int)Math.Round(from + 0.49999f), (int)Math.Round(to + 0.49999f), ref c);
+            }
 		}
 
 		//mxd
diff --git a/Source/Plugins/VisplaneExplorer/Resources/vpo.dll b/Source/Plugins/VisplaneExplorer/Resources/vpo.dll
index 682892d3..cefce4e4 100755
Binary files a/Source/Plugins/VisplaneExplorer/Resources/vpo.dll and b/Source/Plugins/VisplaneExplorer/Resources/vpo.dll differ