OK. I don't know what you should do either, really. It seems to work just fine on my system. I can't remember what frame rate I was getting in the FPS example, but I went back and ran it and it was adequate and seemed as fast or possibly a shade faster than it had been the last time I tried it in software. If it doesn't actually make it faster, it might be better to just turn it off in jpct and leave an option for the author to turn it back on and do another solution if he chooses like some kind of start up option or something. Maybe we could do some tests on our different systems with it turned off and see if it matters or not.