There are people playing on Arch that will probably have more useful things to say, on Ubuntu it just worked so I never really got into the guts of it. Not saying you should switch, god forbid I'd ever suggest changing distro.
It could be just some resource file is missing. Not familiar with Arch but I'm assuming AUR is its software source? So what I would try if you haven't already, is install through that then just replace binaries for those from SF.
It could be just some resource file is missing. Not familiar with Arch but I'm assuming AUR is its software source? So what I would try if you haven't already, is install through that then just replace binaries for those from SF.