assuming your graph output size isn't set to something stupid this is probably one for Adobe support. I haven't had this sort of problem (using it since 2013) on any of my machines (both intel and amd, with nvidia gpu and integrated amd gpu ) and none of my team have reported anything the forums are awful compared to when…
This looks great! Just downloaded it and tried to use it, then cried a little when I saw: REQUIRES: Maya 2013 and earlier Any chance of getting 2014 support?
Interesting read on polygon.com btw on the subject http://www.polygon.com/2013/1/11/3864912/gamers-encourage-publishers-to-keep-making-the-same-games-says-david