The game isn't actually locking up - that's how fast a 5200 runs shaders.
I worked it out to be approx 1 frame every 3 minutes when I did a test for lols. TBH the FX/5 series suck for shaders, even the faster FX cards are hopeless.
<Erf> SkulFuk: gf just made a toilet sniffing joke at me
<Erf> i think
<Erf> i think i hate you
Thanks mate, I had figured my hardware just wasn't good enough but I figured I'd try to see if maybe it was something else. Just confirming my first thoughts. =)