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When I activate mouse VSIM, the game doesn't react in the slightest to my mouse movements. I'm using win10 and according to others on the forums, it should be working fine. I tried unplugging all other input devices except my mouse and keyboard with no results. Does anyone have the slightest idea what might be causing this?
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I'm encountering the same problem. The weird thing is, Mouse VSIM works in the Tutorial, but not in the DBTS campaign. I'm also running this on a Windows 10 OS.
Found a solution: I downloaded the Xtended mod ( and the Mouse VSIM worked fine in the campaign.