OK, here's a VS2013 project with a dialog laid out as I think you want it. Look at the .ui file, and you will see that everything is inside layouts, as I said in the earlier post. The spacers work correctly and push everything to the left or up as expected. In your .ui code, there are no explicit layouts as children of your centralWidget or group boxes.
Capture.jpg
GroupBoxDemo.zip
Not sure what's happening here - there seems to be two sets of attachments, one pair that is an earlier version (without the border on the frame) of code and screenshot, and the other a newer version (where I added the border to the frame). The only difference is the .ui file. It looks like the inline version (above) is the correct one and the one below in the Attachments box is the older version.
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