horizontal screen problems - iPhone 3G

[aubiecakes]

I have an iPhone 3G and I've had it for about a week and in the last 2 days my screen has stopped turning horizontal - like when I'm viewing pictures or I'm on a website and I turn my phone it won't turn with me. Is there a setting I've somehow changed? Please help!

 

[cdrtravis]

Could be the accelerometers, in which you'll be looking at a replacement handset. That said, I believe there is a software issue that can mess up the tilt function. Unfortunately, I can't remember what the fix is.