360 wireless (B button)
 

My B button (red) on the wireless controller has stopped responding. I noticed it the other day where it wouldn't work but then it would sometimes come back. I thought maybe I wasn't pressing it hard enough.

Now it's totally unresponsive. I don't have any games right now and I've mainly been using the 360 dashboard browsing and so forth. The Back button is what I'm using in it's place for now.

In-game play such as Halo 2 (melee attack) would probably not work. :(

Has this been an issue before? This controller came with my PRO system just 2 days ago. The manufacture date is 6/27/2006.

just call tech support, they'll send a new one out, usually for free.