Visible Property Not Working

["katie_lostsoul"]

Hello,

 I have a button, that when rolled over, will show another sprite.

 Code on the button:

 on beginSprite
   sprite("print01").visible=FALSE
 end

 on MouseEnter me
   _player.cursor(280)
   sprite(me.spriteNum).member=member("01_btn_o")
   sprite("print01").visible=TRUE
 end

 on MouseLeave me
   _player.cursor(0)
   sprite(me.spriteNum).member=member("01_btn_n")
   sprite("print01").visible=FALSE
 end


 And the "print01" sprite has been named and is on the timeline.

 I keep getting an error message saying the property isn't found #visible

 Any help would be great - thanks