If I alt tab to research on wiki's while playing every left and right click is transferred to both my duo box windows. This can cause a lot of problems... already I used a food I didn't want to once and it is always popping up menus and making the error sound if it's not applicable.
I googled and searched the forums and there's a lot of threads saying how to block the input and I try that, but all it does is block the mouse movement not the mouse buttons, which are a far bigger thread imho, I could warp myself or throw away pieces of gear or who knows what while just alt tabbed and browsing the web...