Must I finish every mission to unlock Insane, or just the last one

I don't know why it's happening, but I've found that if I back out once the game has begun trying to connect me to one of the 20 matches it initially finds, I'm able to get into a game once I try again.

It may be blind luck, but ... it's seemed to consistently work (and if nothing else, it's better than just sitting about).

I've also found that people bail rather quickly from games. I finally got into a horde game where we had 4 people going into waves in the 30s, but it didn't last much beyond that.

Because of that, and that people may be focused on versus at this point, it might be worthwhile finding a group of people to play with on a Web site, or waiting until more people have started playing horde and beast modes. I know that's what I'm planning on doing this weekend.

The reason for the weird system popups is that the Xbox doesn't support 3D natively. It's just the game itself that outputs two half-size images on a normal 2D output. The TV then pulls out the two images and displays one to each eye when you put it manually in 3D side by side mode.

If you look at the Xbox guide during Gears with the TV in 2D mode what you see is what the TV uses to split the two images. It will take the left half of the screen with the left half of the dashboard and display it to the left eye (only) in 3D mode. The right half of the dashboard goes to the right eye (only) so the two eyes see totally different content.

If the dashboard knew that the game was in 3D side by side mode it could potentially show two smaller squashed and repeated dashboards, one on the left and one on the right so that both eyes see the same image in 3D, but it doesn't.

Also you're not seeing a 2160x1920 image. You're seeing a 1280x720 image as generated by Gears, with each half of the image dedicated to one eye. The 360 then upscales to a single 1920x1080 image. The TV further upscales the image for each eye to fill the screen. So it's 640x720 per eye upscaled to 1920x1080 per eye on an active 3D display, or sidescaled to 1920x560 on a passive 3D display. Either way it will look blocky.