June 2015
my mouse of windows 8 appears on the screen at the same time as the mouse of the game, which is really uncomfortable play with it. it's a problem of the game or my pc?
June 2015
Try disabling Origin in-game as follows: http://answers.ea.com/t5/Dead-Space-1/Double-Mouse-Pointer-in-Dead-Space/m-p/4411937/highlight/true#...
February 2016
Guys, gals, seems it's not a fix (so don't 'accept solution') but disabling Origin in game seems to once again recognise mouse input in-game. The bug is with the Origin client. I have no idea if this then prevents you exporting profiles between ME1 and ME2.
Workaround: Right click your game icon in Origin, click 'Game Properties', tick the 'disable Origin overlay for this game' checkbox