I've had Control 4 systems over the years in 4 different homes and always have issues with the remotes. I've found that batteries don't last long and that sometimes they corrode. When this happens vinegar and a q-tip seem to work. This time I have a 4 year old remote that hasn't had any corrosion, but even though I've tried numerous set of new batteries, I still can't get the remote the load. Any ideas? Thanks.