A few pple i know went to e3, and about half of them said the 3d didnt work for them. ive also heard from many sites complaints about the 3d (gametrailers "invisible walls"). Will these issues we fixed by release?

Will you need a particular computer monitor to play in 3d? the nvidia 3d glasses need special ones wth crazy refresh rates or something.

The answer is yes, 120Hz or higher. I went to E3 and the 3D didn't work/wasn't working, so it must have been a malfunction.

The kinks with 3D should be fixed by release. After all, it was JUST announced then, and stereoscopic 3D for the engine was back in January or so.

I'm sure it will work, I saw it work great at GDC. It was beautiful.