diff --git a/src/Config.h b/src/Config.h
index e6b91a1f..112e85cd 100644
--- a/src/Config.h
+++ b/src/Config.h
@@ -30,7 +30,7 @@
 #define VER_LAMEXP_MINOR_LO					4
 #define VER_LAMEXP_TYPE						Alpha
 #define VER_LAMEXP_PATCH					3
-#define VER_LAMEXP_BUILD					790
+#define VER_LAMEXP_BUILD					791
 
 ///////////////////////////////////////////////////////////////////////////////
 // Tool versions (minimum expected versions!)
diff --git a/src/Dialog_Processing.cpp b/src/Dialog_Processing.cpp
index bb6cf76a..9c3bfbeb 100644
--- a/src/Dialog_Processing.cpp
+++ b/src/Dialog_Processing.cpp
@@ -64,6 +64,7 @@
 
 #include <MMSystem.h>
 #include <math.h>
+#include <float.h>
 
 ////////////////////////////////////////////////////////////
 
@@ -987,39 +988,27 @@ bool ProcessingDialog::shutdownComputer(void)
 static int cores2instances(int cores)
 {
 	//This function was approximated as a "cubic spline" with sampling points at:
-	//(1,1);(2,2);(4,4);(8,6);(16,8);(32,10);(64,12)
-
-	double x = static_cast<double>(cores), y = 1.0;
-
-	if(x >= 1.0)
+	//(1,1); (2,2); (4,4); (8,6); (16,8); (32,10); (64,12)
+	static const double LUT[8][5] =
 	{
-		if(x < 2.0)
+		{ 1.0,  0.01440972, -0.04322917, 1.02881944,  0.00000000},
+		{ 2.0, -0.02881944,  0.21614583, 0.51006944,  0.34583333},
+		{ 4.0,  0.01017795, -0.25182292, 2.38194444, -2.15000000},
+		{ 8.0,  0.00005425, -0.00885417, 0.43819444,  3.03333333},
+		{16.0,  0.00011122, -0.01158854, 0.48194444,  2.80000000},
+		{32.0,  0.00000949, -0.00182292, 0.16944444,  6.13333333},
+		{64.0,  0.00000000,  0.00000000, 0.00000000, 12.00000000},
+		{DBL_MAX}
+	};
+
+	double x = abs(static_cast<double>(cores)), y = 1.0;
+	
+	for(size_t i = 0; i < 7; i++)
+	{
+		if((x >= LUT[i][0]) && (x < LUT[i+1][0]))
 		{
-			y = ((83.0/5760.0) * pow(x,3.0)) - ((83.0/1920.0) * pow(x,2.0)) + ((2963.0/2880.0) * x);
-		}
-		else if((x >= 2.0) && (x < 4.0))
-		{
-			y = - ((83.0/2880.0) * pow(x,3.0)) + ((83.0/384.0) * pow(x,2.0)) + ((1469.0/2880.0) * x) + (83.0/240.0);
-		}
-		else if((x >= 4.0) && (x < 8.0))
-		{
-			y = ((469.0/46080.0) * pow(x,3.0)) - ((967.0/3840.0) * pow(x,2.0)) + ((343.0/144.0) * x) - (43.0/20.0);
-		}
-		else if((x >= 8.0) && (x < 16.0))
-		{
-			y = ((1.0/18432.0) * pow(x,3.0)) - ((17.0/1920.0) * pow(x,2.0)) + ((631.0/1440.0) * x) + (91.0/30.0);
-		}
-		else if((x >= 16.0) && (x < 32.0))
-		{
-			y = ((41.0/368640.0) * pow(x,3.0)) - ((89.0/7680.0) * pow(x,2.0)) + ((347.0/720.0) * x) + (14.0/5.0);
-		}
-		else if((x >= 32.0) && (x < 64.0))
-		{
-			y = ((7.0/737280.0) * pow(x,3.0)) - ((7.0/3840.0) * pow(x,2.0)) + ((61.0/360.0) * x) + (92.0/15.0);
-		}
-		else //if(x >= 64.0)
-		{
-			y = 12.0;
+			y = (LUT[i][1] * pow(x, 3.0)) + (LUT[i][2] * pow(x, 2.0)) + (LUT[i][3] * x) + LUT[i][4];
+			break;
 		}
 	}
 
diff --git a/src/Global.h b/src/Global.h
index 208e9276..faaf8576 100644
--- a/src/Global.h
+++ b/src/Global.h
@@ -29,6 +29,7 @@
 #include <tchar.h>
 
 //Windows includes
+#define NOMINMAX
 #define WIN32_LEAN_AND_MEAN
 #include <Windows.h>