Moving windows and disappearing title bars

My setup is most likely different to many people's. I have my windows taskbar at the top of the screen. On my notebook, it is not set to autohide. 

Problem: 

When the window is certain sizes and in certain positions. If I minimise it, when I restore it, it moves a few centimetres up the screen such that the titlebar of the program cannot be seen. The only way for me to move it is to shrink or widen the width of the window and for some reason it then moves down the screen enough to allow me to grab the titlebar and drag it down.

Before shot:

After shot:

I do not like the way the windows move around the screen when they are restored after minimisation. There are certain size program windows within which I like to work (I rarely work with any program maximised). But, I am unable to keep these windows in the position to which I am accustomed. They move up and to the left. They have a mind of their own (or of the designer's). Why can't I set the window positioning as I like it?