Nothing But Problems

Had this camera about six months - going to send it for repairs - thought it was me not setting it properly but it just doesn't work right - very few if any properly focused pictures - taken about 2000 - focus shift thing has a fit every once in a while and buzzes and chatters like its going to blow up! -viewfinder switches to B&W negative in low light! I have to work on almost every picture in editing software to get good results - have owned digital cameras Sony 3.2 meg for a long time and bought my first 35 mm in 1962 - canon A1's and F1 - Minoltas and others I have done darkroom work for 25 years. so I am no beginner this camera sucks!