CoD & Triple Head

[tf_neuro]

I set my resolution manually in conf.ini, the one in My Documents.
You have to disable the cloud in Steam or it will always replace conf.ini with auto-backed-up one.
(Steam tray icon => rightckick =>settings=>Downloads+cloud=>Uncheck the second checkbox from bottom)

CoD kinda works in a window at 2600x996, giving me 90 degrees FoV in the middle monitor + half of the 2 side monitors.

I tried the zoom thing but it doesnt work. First of all, I didnt understand how to hold down the Mouse5 button. On a regular 3 buttons mouse wheel up and wheel down are buttons, OK... but how to hold it? So I changed the assignment to Crtl+Mouse1 but when I hold down Ctrl and Mouse1 (Left, I assume?), move the mouse and nothing happens.

PS: I noticed that CoD works more smoothly in a window than it does on full screen... but it may be me. Or the Triple Head.