[sungod21]

I am a novice in regards to picture taking and using the camera function on my iPhone4. I want to know the proper steps to take pictures at seminars at the big projection screen on the stage. Especially when there is text on the screen. Every time I use my iPhone4 to take what is on the screen. All I get is a white color picture. I do not see any text. I try to zoom it and still all I get is white. Can someone please help me with this situation?

Thank you,

Joe