Thank you for your report. We couldn't reproduce this problem. However, it looks like this problem is specific to that one Viewer machine. Are there any special utilities running there especially those that could use or modify the behavior or keyboard/mouse?
Not necessarily. It all depends on whether you need remote access over the Internet or you want to restrict the program to local network only. Either scenario is possible. Unlike some other well-known programs Remote Utilities is flexible enough to be used both for Internet-based remote support and for the use in isolated and strictly secured networks.