unable to get touches on the bottom after rotation
===

I have a problem iOS device, 

i'm rotating the UIview using 


<code>
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
    if (interfaceOrientation == UIInterfaceOrientationPortrait) {

         [[UIDevice currentDevice] performSelector:NSSelectorFromString(@"setOrientation:") withObject:(id)UIInterfaceOrientationLandscapeLeft];
    }
    return  UIInterfaceOrientationIsLandscape(interfaceOrientation);
}
</code>

touches are impossible in the bottom of uiview. after debugging i found that the frame change from 0 0 768 1024  to 0 0 1280 512 

any idea ? 