Some bug fixs

src/minecraft/Start.java

@@ -1,6 +1,8 @@
 import java.io.File;
 import java.lang.reflect.Field;
 
+import javax.imageio.ImageIO;
+
 import net.minecraft.client.Minecraft;
 
 public class Start
@@ -21,4 +23,8 @@ public class Start
 
         Minecraft.main(args);
     }
+    
+    static {
+    	ImageIO.setUseCache(false);
+    }
 }

src/minecraft/net/minecraft/src/NetServerHandler.java

@@ -128,13 +128,14 @@ public class NetServerHandler extends NetHandler
 
             if (!this.field_72587_r)
             {
-//                var3 = par1Packet10Flying.yPosition - this.lastPosY;
-//
-//                if (par1Packet10Flying.xPosition.compareTo(this.lastPosX) == 0 && var3 * var3 < 0.01D && par1Packet10Flying.zPosition.compareTo(this.lastPosZ) == 0)
-//                {
-//                    this.field_72587_r = true;
-//                }
-            	this.field_72587_r = true;
+                var3 = par1Packet10Flying.yPosition - this.lastPosY;
+
+                if (par1Packet10Flying.xPosition.compareTo(this.lastPosX) == 0 && var3 * var3 < 0.01D && par1Packet10Flying.zPosition.compareTo(this.lastPosZ) == 0)
+                {
+                    this.field_72587_r = true;
+                } else {
+                	this.playerEntity.serverForThisPlayer.sendPacketToPlayer(new Packet11PlayerPosition(this.lastPosX, this.lastPosY + 1.6200000047683716D, this.lastPosY, this.lastPosZ, false));
+                }
             }
 
             if (this.field_72587_r)

src/minecraft/net/minecraft/src/OpenGlHelper.java

@@ -49,10 +49,12 @@ public class OpenGlHelper
     {
         if (useMultitextureARB)
         {
+        	ARBMultitexture.glClientActiveTextureARB(par0);
             ARBMultitexture.glActiveTextureARB(par0);
         }
         else
         {
+        	GL13.glClientActiveTexture(par0);
             GL13.glActiveTexture(par0);
         }
     }