How do I layout in a Grid?

[DPinLV]

Hello,

I saw another post that talked about laying out widgets in a form and setting the layout for resizing. But, that didn't seem to fix my problem.
I have a Tab Widget that has two pages. Each of the pages contains a tab widget (with two pages) also.

Below the top Tab Widget I have two buttons.
When I set "Layout To Grid" for everything the Tab Widget scales correctly - it resizes as the form resizes etc. The problem is my buttons also resize so they both take up 50% of the form width. If I change the sizePolicy hSizeType to Fixed for both buttons, the buttons size fine, but the Tab Widget also shrinks down.

Do I need to change the hSizeType to something other than Fixed? I also tried to change the maximum size to limit the size of the button to 75, but it creates the same end result on the Tab Widget.

Thanks,
Derrrick