How to Check LCD LED monitor if its 100% Working?

Hi Im from Philippines, I buy this Brand New Chemei 18.5 LCD LED monitor for 3800php only(4300php for store)discount of 500php, The problem is I only have 2 weeks warranty.
How to Check LCD LED monitor for dead pixel, what software is effective for checking.
Thanks and more power to Warezz-bb.org.
Answer #1
Go here.
You will be able to use it too identify any pixel faults.
http://www.flexcode.org/lcd2.html