I'm having an issue with Isboxer when it comes to the "Next Window" option to switch between the two instances of Diablo. Basically it's hit or miss if it works or not. I launch the game thru isboxer picking my team and both instances fire up without any problems, but when I click Mouse4 to switch between screens nothing happens or somethings it switches to one, but it won't switch back. So I end up having to close everything and launch the game again over and over again until it finally works. Once it does it runs great with no issues, but getting it to "stick" is a real pain. Any ideas what could be going wrong? I've tried remapping it to a different key but it makes no difference.