Hi all, Just replaced a faulty power supply in my Source Four Revolution. All went well except for one thing. The unti won't focus now. I see that the focus control is trying to do something as I try to focus it from the light board, but nothing even close to focus is attainable. Is this possibly related to the fact that I put in a new power supply, or is it just coincidence that this is happening at this moment? Anyone suggest any possible fixes for this issue? Thanks so much, Tim at U.C. Berkeley.