Hey bro, I know how you feel.
I purchased a new Apple Cinema display, which cost of course $2500!!! As much as their midline machine would..
I have a clump of dead pixels, and over 40 stuck ones around it.. the first time I sent it in they said there was no defect found..
Did yours get sent to Louisiana too?
I'm really upset about it, and again, after waiting on hold for MORE THAN AN HOUR, (from 2:20 to 3:30), i have to send it in again...
Just letting ya know it doesn't seem to matter how much they pay, and bro, I'm hoping I get an exchange here
Ask them to check the raytube itself, or the circuittry to see if it's a busted capacitor, or the transistor won't take the res. It sounds to me as if the system is having electrical problems, thus the problem with high res/refresh rates