diff --git a/test/tight-1.c b/test/tight-1.c
new file mode 100644
index 0000000..f405097
--- /dev/null
+++ b/test/tight-1.c
@@ -0,0 +1,25 @@
+#include <rfb/rfb.h>
+#include <rfb/rfbclient.h>
+
+int main(int argc,char** argv)
+{                                                                
+  int i,j;
+
+  rfbScreenInfoPtr server=rfbGetScreen(&argc,argv,400,300,8,3,4);
+  rfbClient* client=rfbGetClient(&argc,argv,8,3,4);
+
+  server->frameBuffer=malloc(400*300*4);
+  for(j=0;j<400*300*4;j++)
+    server->frameBuffer[j]=j;
+  //server->maxRectsPerUpdate=-1;
+  rfbInitServer(server);           
+  while(1) {
+
+    for(j=0;j<400;j+=10)
+      for(i=0;i<300;i+=10)
+	rfbMarkRectAsModified(server,i,j,i+5,j+5);
+
+    rfbProcessEvents(server,50);
+  }
+  return(0);
+}