iOS Tap To Focus

[iAAPL]

I'm writing an app that uses a camera overlay. The camera is in the background, and there are buttons on top. It was working great until yesterday. I don't know if it has anything to do with it, but I updated my iPhone to 4.3 beta 2 yesterday. Now for some reason, tap to focus is enabled. This is really annoying, because when you tap one of the buttons, the focus changes to the point where the button is.

Does anyone know how to disable tap to focus? Thanks.

 

[iAAPL]

Okay, I downgraded my iPhone 4 to iOS 4.2.1 and my app works great again. No tap to focus. Any ideas? I'm going to have to fix this before iOS 4.3 hits iTunes for everyone else.