I've installed Eric's 9.9 release of handbrake on Slackware64 current and the buttons and text fields seem way to squished together.
http://imgur.com/LiKVw8J

This is how Handbrake looks on Mint 15.
http://imgur.com/YmTPNrQ

Any Ideas why handbrake is rendering so goofey on slackware? I've used qt4-config to change to all of the possible different themes and nothing changes. The app works fine, just the interface seems a bit off under slackware?

I'm getting this error in my .xsession-errors

(ghb:24981): Gtk-WARNING **: Theme parsing error: gtk.css:62:20: Not using units is deprecated. Assuming 'px'.

Slackware-Current is not totally stable so it might be a problem with the QT4 package itself. You should stick to the 14.0 official release for proper support.

I think HB is build against GTK3, not QT. Try with another GTK theme. I built mine local, but used same sources (thanks Eric), same version and Slackware64-current.

http://imagesup.net/?di=713721258287

I've also run Eric's package as well as built it localy with the slackbuild. No matter what theme I use under XFCE I get the squished interface. If I log out and start a KDE seeion, the handbrake interface works fine.