My iphone's accelerometer has problem where during playing NFS and other racing games, i just put on flat table top but the car always in left turning, so i have to tilt it right side a bit in order to go straight.

I have tested it with bubble level app, it shows the same problem which is the accelerometer out of align. But bubble level app allow me to calibrate it.

Anyone has same prob as mine? from google, there are a lot of people facing this prob, are all iPhone units got this problem?

My accelerator having problem where putting on a confirm flat table but the bubble show not on center when using bubble level software to test out. Playing NFS game also same, the steering sway left side.

Any body has this problem and claimed a new phone before?

Phone: 3gs
Software: Bubble Level