Ok, I've been messing around with NetBeans for a few hours and have a few issues.

I can't figure out how to get my window size to change when I "Run Project", It seems like when i stretch the design window, then run "Preview" it displays the stretched window but when you do the Run Project, it doesnt change. I've tried to change the preferredSize but nothing happens (except when you do the "Preview" option).

What am I doing wrong?