White pixels around graphics edges

I just got a new laptop which has an Nvidia GeForce 9600M GT card, and, although it runs Sins beautifully, there's a slight graphics bug I'm running into.  Lots of things, in particular units and "free" asteroids (the ones that just float around some grav wells), have white pixels around their edges.  I seem to recall seeing a solution to this posted somewhere before, but I can't find it now that I actually want to   Anyone know how to fix this?