Frictional Games Forum

My mouse works in windows and other games but while Im playing penumbra it doesn´t work correctly i can see the light of the mouse turning off and seconds later turning on .
Pc : Amd 2800 XP+
GForce 6600 GT , 512mb ram , microsoft optical mouse

Sounds very strange, I am using SDL (a lowlevel library) for that stuff so there is little I can do about it. Could you try and download the mod-tools and see if the mouse works there?