I purchased Compressor 4.1 to try it as an alternative to Handbrake. I was especially interested in the distributed computer capabilities. I have tried every iteration of setting up a cluster with no success. I am using two i7 iMacs connected via my network with cat 6 cable. The software sees the other computer and I can select and try to process a job. Whenever I try to do anything, Compressor gets stuck at waiting and will not run. The only way the software can be used is as a single computer. When run as a single computer it will not take advantage of the 8 cores available. Compressor is also supposed to be able to use your GPU. Is there a way to see if the GPU is being used? So far, Compressor 4.1 seems to promise much and deliver very little.