ProSelect minimizes when opening some dialog windows
Windows 10 has a feature called Tablet Mode that will minimize an application to the Taskbar when a sub-window is opened. If you have this turned one, it can cause ProSelect to minimize when you open another window from within ProSelect.
So to fix this problem, you just need to turn the Tablet Mode off.
You can disable Tablet Mode using one of the following methods:
We Googled this issue for Windows 7 users and found a few possible solutions:
1. One user found that AVG anti-virus software was the cause. He uninstalled it and the problem went away
2. Disabling Aero Peek by right-clicking on the taskbar then select Properties. In the window that opens, under the taskbar tab, uncheck "Use Aero Peek to Preview the Desktop".