I have 2 of the early Hoppers w/o Sling both now running S440. Both are unstable and at times I must turn the Hopper off via the remote, wait a few seconds and then turn it back on for the video to return. Both downloads were rough and I had to unplug each one and plug it back in for them to work at all. We have been pretty fortunate up until now as most software updates have gone well. This version is the buggiest I have seen in a long time - I hope fixes are in the pipeline.