Ok this person obviously needed help and may have been a new user when it came to smart phones. We've all been there so try not to be rude to new members.
What seems to be a simple issue to some may not be for others.
OP, what case were you using with your iPhone that caused this issue? It may help someone else from purchasing this case in the future.
Secondly, any case from otterbox, speck, griffin, iFrogz, and lifeproof are safe bets. I've yet to hear of a flash bleeding problem with these cases.
!
If your looking for maximum protection, might I suggest the otterbox defender, or the griffin survivor? Both of these cases work well with the flash on the iPhone 4.
For mid-protection, I'd suggest using the otterbox commuter, or a speck pixel case.
These are all excellent cases that have great customer feedback.
If you need anymore assistance, please post back and to everybody else...
Remember, we were all new to the world of iPhones once. We all asked "simple" questions if you think back on it. I know I did. So please in the future, refrain from making someone new feel silly for asking a question or un-welcome.
Thank you.