I just picked up a 3D XL and my glasses keep flickering, changing color, and switching back and forth between 2D and 3D. I have a PS3 and and Xbox 360 hooked up to a Yamaha 3D ready reciever via HDMI, and the HDIMI from the amp to the 3D XL, which is hooked to my BenQ MX615 3D ready projector.
The projector is displaying the 3D image, but the glasses just won't sync up properly. I have the projector in a dark basement. I have played around with lighting, positioning, and settings to no avail.
Any help would be greatly appreciated. I was so excited to get this and now I am so disappointed. Seems like it works great right out of the box for most people.