I know while my Dell laptop is under warrenty that they will replace the screen if you have more than one dead pixel.
Personally out of the box I wouldn't accept it with a dead pixel. I'll check with our system guys who just set up about 15 Sony 19" TFT monitors to see if they had any with dead pixels... I would still send it back regardless.
Athlon 1.4Ghz (266fsb)
ASUS A7M266 Motherboard
ASUS 8200 Geforce 3 Pure
256 PC2100 DDR
Enermax 350w DualFan PSU
Realtek 10/100mb NIC
CPU: Intel i7 2600K @ 4.6Ghz
Mobo: Asus P8P67 Pro B3 Revision
Mem: Corsair Vengeance 8GB (2x4GB) DDR3 1866MHz
Video: 2 x MSI HD5850 Twin Frozr II (CrossfireX)
HDD: Crucial C300 128GB SSD, Seagate Momentus XT 500GB
Sound: RealtekŪ ALC892 8-Channel High Definition Audio
OS: Windows 7 Home Premium 64bit