Problem is that Arcsoft MCE is automatically started to primary screen maximized. I didn't find a way to change it so now that window is restored to normal size, moved to secondary screen (first be found) and then maximized again. Result is that there is some delay and window is flashing a little before it is finally settled to secondary sceen maximized (our goal.. was it .
So here it is for you to try. Replace plugins\Windows\BluRayPlayerLauncher.dll with the file found in attached zip. You find a new option "Use secondary screen" in configuration. All pros to Tourettes for making this great plugin and all cons to me for breaking it . Hope it works.. if not please send mediaportal.log here (use debug mode) and I could take a look.
Thank you. Works for me.