Minimise on launch

Having ticked the appropriate box to - minimise the application to tray - the programme launches in full screen and imports new mail??

Is there a way to launch immediately to the tray yet collecting the new mail as it does so??

Is it possible to launch the programme and immediately for it to minimize the application to tray?

I have ticked the appropriate selection but it always opens immediately in full screen??

I hope so, too.~~~~~~~~~~