I've combed through Google search results for an answer but haven't found anything that helps. I'm currently running two screens on an NVIDIA GeForce 8500 GT and have a few full screen games. Warhammer Dawn of War Dark Crusade works fine, a barrier appears most of the time that prevents the cursor moving to the second screen, so I can hit that one pixel column that activates the scroll over the map. Half Life 2 also works okay, because the cursor is always centred and moving the mouse moves the screen instead. However, I pulled out Rise of Nations not too long ago, no barrier. The only way to fix it is to disable the second monitor. Which is a hassle, it's set up with a heap of icons and a few widgets that need moving over first, then moving back when I reenable it. Oh well, I don't play that game that often. Though we recently got Spore, which has a similar problem. I'm not worried that it can flick over to the other screen, the problem is it won't move back. Which means a minimise of the game then a restore. Or I could go through and disable the second monitor. Blegh. Is there some sort of program that will force the barrier every time I run a full screen app, or something I can set up that the mouse won't cross?