Updated March 11th, 2016
The built-in VNC server in Mac OS X 10.7 (Lion) prompts for the logged-on user's credentials. This prevents MRC users from establishing a non-preemptive connection to the remote users' computers if the remote system is running Mac Lion. If the MRC user enters the remote user's password, Lion logs the remote user off and connects the MRC user.
DameWare Mini Remote Control version 9.0 and later
Install a third-party VNC viewer on Mac OS X 10.7 clients. SolarWinds Support has verified this workaround using Real VNC. (© 2002-2017 RealVNC Limited, available at https://www.realvnc.com/, obtained on February 7th, 2017.)
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