call up dell immediately and you will have a 24 incher within 24 hours!!
you don't need the bill or any warranty papers. call up their 1800 toll free number--look it up in dell website and have your system service tag number ready.also tell them there are a few dead pixels --no one would check -- and the next day a blue dart guy would come and take it away and give you a new 24inch lcd (for free)