Mouse wont stay locked to the moniter

[Steel]

It keeps going to my other displays when i look around. So its completely unplayable.
I've messed around with the settings, Alt+enter doesnt fix anything. No idea why this decided to start happening

[Mittens]

just restart your PC, had the same issue yesterday

[ShadowDMG]

Originally posted by Mittens:

just restart your PC, had the same issue yesterday

I'm dealing with the same issue & my PC has not only been reset but I've also updated everything. it won't stop

[TalonVonDrachen]

I'm having the same issue. once i updated my drivers and launched the game, went to play Halo:CE Anniversary in co-op (via steam) and my cursor would not lock on the window. I would go to look left, only to have my cursor move to my left monitor, and then click to fire, which would minimize the game window. I restarted my computer, and made sure my settings were on "fullscreen" and not borderless, and was able to get the cursor to lock in single player campaign. But, once playing campaign in co-op again, it refuses to stay locked.

[Kelb Shelb]

my friend is having this issue too very annoying

[doserino]

I'm surprised this is the only post I've seen mentioning this bug. I got back in the mood to play and this glitch keeps happening even after: resetting my computer, selecting full-screen, verifying game files, updating computer, alt+enter... Would love an actual work around besides hoping it doesn't do that.

[SlippyBippy]

Same

[Butcrackz]

This is also happening to me, i wanted to play Halo 2 Co-op with my friend several times, but we cannot play due to my mouse keeps going to my second monitor

[Steel]

Originally posted by Butcrackz:

This is also happening to me, i wanted to play Halo 2 Co-op with my friend several times, but we cannot play due to my mouse keeps going to my second monitor

I had to download an external program to make it stop

[Butcrackz]

Originally posted by Steel:

Originally posted by Butcrackz:

This is also happening to me, i wanted to play Halo 2 Co-op with my friend several times, but we cannot play due to my mouse keeps going to my second monitor

I had to download an external program to make it stop

Would you care to elaborate as to which program that is? Cause i really wanna play with my friend

[graywolfman]

Originally posted by Butcrackz:

Originally posted by Steel:

I had to download an external program to make it stop

Would you care to elaborate as to which program that is? Cause i really wanna play with my friend

Not OP, but I use this one https://dualmonitortool.sourceforge.net/

you can set up a hot key to lock your mouse to a specific monitor

[Will_Destroy]

I had the same issue. Found this online, worked for me.
https://answers.microsoft.com/en-us/windows/forum/all/cursor-going-to-second-monitor-while-in-game/e0ed5996-d3e1-438f-959e-4b2d9352e03c

If you don't want to click the link it basically says the windows update KB5045935 causes the issue and uninstalling it fixes it.