You could try the latest gnash from my "gnu ppa" (i try to update this quite
often): https://launchpad.net/~dns/+archive/gnu
you just need to add my launchpad key:
sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 479B857B
and then this to your sources.list..
..if you have taranis, you have to add:
deb http://ppa.launchpad.net/dns/gnu/ubuntu lucid main
deb-src http://ppa.launchpad.net/dns/gnu/ubuntu lucid main
..if you have slaine, you have to add:
deb http://ppa.launchpad.net/dns/gnu/ubuntu maverick main
deb-src http://ppa.launchpad.net/dns/gnu/ubuntu maverick main
PS: So far the packages are not compiled with any hardware acceleration.