If you are trying to play the classic version of GTA San Andreas on a modern PC, you have likely encountered the "Mouse Bug." This happens because the game was designed for older single-core processors; on modern multi-core systems, the mouse frequently stops working in menus or fails to rotate the camera.
Frame Limiter Fixes: Allows the game to run more smoothly at higher FPS without breaking physics. gta san andreas windows 88110 mouse fixzip
It sounds like you're looking for a mouse fix for Grand Theft Auto: San Andreas on Windows 8, 8.1, or 10 — specifically one packaged in a .zip file. The classic issue: in older versions (especially the original 1.0 executable), the mouse doesn't work properly in menus or free look, often due to raw input handling changes in modern Windows. If you are trying to play the classic
If you don't want to download third-party files, you can use a manual workaround, though you’ll have to do it every time you play: Launch GTA San Andreas. Minimize the game (Alt + Tab). Open Task Manager (Ctrl + Shift + Esc). Go to the Details tab and find gta_sa.exe. Right-click it and select Set Affinity. Uncheck "All Processors" and select only CPU 0. The classic issue: in older versions (especially the