I just got off the phone to Acer Technical Support. I'm awaiting a
shipping label, as I am going to RMA it. Not happy. The problem is
unfortunately with most X34P models. It is fine with native 100 hz. As
soon as I overclock it, it starts blinking/flickering. I was in 120hz
rock solid heaven for about 2 weeks. Then it just started blinking.
Tried everything, from re-setting the monitor to various software
configurations. Nothing worked. Gotta pack this big assed thing back up
to send. I will only do this once, as I'm pretty sure it's a consistent
problem, addressed ONLY on a hardware level. I'm hoping that its just a
matter of a "monitor lottery", so perhaps my replacement will not
flicker..not very confident however. I will follow up and let you know.
And no, changing the driver to "sync" does nothing, as it is a hardware