Your problem may appear complex but it is often the basics that catch you out. It is extremely common for people to miss steps in their set-up. It is hard to tell at first if a problem is simple or complex so please be patient if you get asked 'the stupid questions'. We are just trying to get a baseline and making sure you have done the basics and trying to understand how you got to this position. Remember, if you phoned the garage about your car and said 'it runs funny sometimes' what would they ask you? Make, model, age... etc.