We are having a slight issue when the remote user has 3 monitors. It will return an image of just the primary monitor. When the remote user has 2 or 1 monitor, it is working fine.
Could you contact us about this issue through email. Our email address is support@lansweeper.com
You are using the latest version of Screengrab.exe, which supports 2 monitors. We will try to reproduce the problem you are experiencing while using 3 monitors.