If your mouse or keyboard feels "dead" after updating, simply reset your control settings to Default in the options menu.
I can provide specific instructions to get your game running perfectly. FarCry 1.4 Stand Alone Patch
Are you playing the version or an original Retail DVD ? Do you need help fixing the AI seeing through walls bug? File: Far.Cry.v1.40.zip ...
If you’re on the retail DVD (v1.3), run the Cumulative 1.40 Installer directly.
Always back up your \Profiles\ folder before patching. If your mouse or keyboard feels "dead" after
A complete UI refresh makes finding and joining active games significantly easier. Essential Technical Fixes
The primary goal of v1.40 was to overhaul the experience while smoothing out technical hitches that plagued earlier versions. If you are running the digital versions from Steam or Ubisoft Connect, you likely have this installed by default, but retail users must update manually to avoid the dreaded "CD Key In Use" error. Key Multiplayer Enhancements Do you need help fixing the AI seeing through walls bug
Full controller support was finally native as of this version.