MTA:SA fix

Mouse freezes after joining any MTA server

When you join a server, the mouse stops working inside MTA and you cannot use the menus, while the rest of your PC works. First check that MTA's CPU affinity setting is ticked.

Steps

1. Make sure the CPU affinity setting is on

   In the MTA main menu, open Settings, then the Advanced tab. Make sure Set CPU 0 affinity to improve game performance is ticked, then click OK. It is ticked by default, so you only need to change it if it was turned off.

   Careful: MTA's team says this did not fix it for some players, and most of them already had the setting on.

   Source: MTA bug tracker, MTA source code, MTA bug tracker

2. Make a log with MTADiag

   Only if the mouse still freezes.

   Run MTA's log tool from mtasa.com/mtadiag and follow its instructions. It gives you a link to your log. Keep the link for the next step.

   Source: MTA bug tracker, MTA forum

3. Still frozen: ask MTA's support

   Only if the mouse still freezes.

   Join MTA's Discord (discord.com/invite/mtasa) and ask for help in the #help-support channel. Add your log link.

   Source: MTA wiki, MTA bug tracker

See also: Mouse does not move the camera in MTA:SA, A website inside MTA is blocked or incomplete

Still not fixed? Copy the whole message, not only the code, and check your log in the Fix tool. It is read on your own computer.

Other problems like this

• Chat box is too big, in the wrong place, or old lines fade away
• Mouse does not move the camera in MTA:SA
• Low FPS or an FPS cap in MTA:SA
• Controller or gamepad not working in MTA
• Voice chat in MTA:SA does not work
• Screen resolution is missing or wrong in MTA

All fix guides · Every MTA:SA error code · Crash codes and offsets