diff --git a/src/main/java/codechicken/nei/ItemsGrid.java b/src/main/java/codechicken/nei/ItemsGrid.java
index dad13d0f..636325c8 100644
--- a/src/main/java/codechicken/nei/ItemsGrid.java
+++ b/src/main/java/codechicken/nei/ItemsGrid.java
@@ -43,7 +43,9 @@ public class ItemsGrid {
         }
 
         public boolean needRefresh(int mode) {
-            return this.nextCacheRefresh == 0
+            final Minecraft minecraft = Minecraft.getMinecraft();
+            return this.nextCacheRefresh == 0 || this.framebuffer.framebufferWidth != minecraft.displayWidth
+                    || framebuffer.framebufferHeight != minecraft.displayHeight
                     || getGridRenderingCacheFPS(mode) > 0 && this.nextCacheRefresh < System.currentTimeMillis();
         }