I just purchased, downloaded and installed Telerik’s RadControls for WPF. When installation finished it offered to run a demo program and I agreed.
I noticed an issue with RadWindow on this 4-monitor Win7-64 computer. RadWindow does not display on monitors 3 and 4. (Display Settings dialogs from UltraMon.)
I moved monitor 4 but RadWindow still doesn’t show up on it.
However, RadWindow does display on monitor 4 in this arrangement.
RadWindow shows up on all 4 monitors when they are arranged like this.
It appears that RadWindow does not like negative-number display positions.