Can't select 3 keys at once

Recently i got Reshade for Call of Duty: 4 but I'm having problems trying to open the menu because I have a function key on my laptop and it prevents me from selecting all three keys at once to open the menu. What do I do to fix this?

Change the shortcut to open the menu to something else. Open d3d9.ini (or dxgi.ini or ReShade.ini, I don't know how it was installed for the game) and change the value behind "KeyMenu=" to your preference. It's in the format "KeyMenu=KeyCode,Ctrl,Shift,Alt". You can get keycodes here: keycode.info/ .

Just space would be the following for example:Ctrl + M would be:

wait I don't see the Keymenu format in the config settings