Wierd Tab Problem / Buttons won't work with "enter" now

I’m having a problem with my tabs and I don’t really understand why, hopefully someone can help.

I set the tabEnabled and tabIndex’s up the way I want them.

Then I decided to get rid of that yellow selected box that appears over my buttons when I tab to them by using

_focusrect=false;

Ok so now the selected box is gone, good thats what I wanted.

But since getting rid of the selected box now pressing enter when I’ve tabed over to a button doesn’t push the button.

The button is selected because it’s in the over state so it should work right?

Does anyone know why or know how to fix it?