I've been wrong once or twice before so I don't want to make a categorical statement, but I'd be very surprised if a video chip capable of playing some pretty reasonable games would be at all stressed by RB's little updates. IMHO it is far more likely to be other I/O slowing the whole process down...

--=-- My credo: If it's worth doing, it's worth overdoing - just ask my missus, she'll tell ya laugh --=--
You're only paranoid if you're wrong!