iphone interface events resolve on exit

Question

I'm having trouble getting components added through the Interface Builder to work on the iPhone. It works perfectly in the simulator, but not on the device. When debugging I found that the events are handled on exit, instead of when i actually press the button. Anyone else run into this issue?

edit: after some investigation, it turns out somehow rendering with core graphics messes it up. If drawRect function in the View is empty, Interface Builder events work like a charm. but the moment i call CGContextDrawImage, they stop being handled are a simply queued up. When the app is closed, all events are handled.

my draw function is simple

-(void)drawRect:(CGRect)rect
{
    CGContextRef context = UIGraphicsGetCurrentContext();
    CGContextClearRect(context, rect);
    CGContextDrawImage(context, rect, image);
    CGContextFlush(context);
}