LCD Panel interference with Tone()

i have lcd display , piezo sounder, included starter kit.  both work fine example sketches.

however, if try use them minute issues tone() command, lcd screen corrupted.  have read on forums vpm pins 3 , 11 affected tone().  therefore not using these , have tried analoguewrite rather tone(), nothing changes.

anytime sound piezo, screen corrupted.

a simple example code fails is:

// include library code:
#include <liquidcrystal.h>

// initialize library numbers of interface pins
liquidcrystal lcd(12, 5, 6, 4, 7, 2);

void setup() {
  // set lcd's number of columns , rows:
  lcd.begin(16, 2);
  // print message lcd.
  lcd.print("hello, world!");
 
  pinmode(8, output);
  tone (8, 256, 1000);
  // "hello world" corrupted , lcd shows rubbish on

}

sorry if obvious, first arduino project.

grateful help.

i tried code on arduino/lcd setup -- changed pins following because didn't want rewire lcd.

code: [select]

liquidcrystal lcd(9, 8, 7, 6, 5, 4);
pinmode(2, output);
tone (2, 256, 1000);

it works fine me, no errors.  maybe picture of wiring help...

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