Baddass said:if you're connecting your PC you can just use DVI if your graphics card has it, or VGA if not with the cables that should be provided. I think Dell are average on number of dead pixels needed before you can return it under warranty, its around 4-7. It'd be rare to have enough to RMA it tbh, more likely if you had 1 or 2 you'd need to return it to the seller under distance selling if you really wanted to