I've been running some deinterlacing jobs with Compressor on our Mac Pro 3,1 dual processor. We'd added some RAM so I was interested to have a look in Activity Monitor to see how it was faring and noticed that the CPU activity never went above 50%. I find it very hard to believe that Compressor isn't intended to take advantage of both processors. I just ran Apple hardware utility off of the original disc and it hasn't found any trouble. Has anybody got any thoughts on this?