The way it works and Im not sure about PSP's but when you buy an lcd monitor or TV, there is an acceptable number of dead pixels, that can be on any sold LCD, before it can be returned or replaced etc... I think its like 5 or 7.... or something like that
But thats not to say that you cant go back to the same store and show them the dead pixel and complain a little... They may just swap you for a new one and be done with it. They may also send it to get repaired, but the longer you wait between your purchase and talking to the shop, the harder it is to get anything done about it.
Id complain, in my experience complaining seems to work a large percentage of the time......
