Try reducing pre-render frames in video drivers to 0. It's usually defaulted at 3.

the beta patch 2 helped a bit offline, where I have "nearly" not input delay anymore, but I just made it to an online server, and even though I managed 3 kills (noob server) the delay was awful, making it impossible to fly competively.. I had something like 1/2 delay on guns, and the plane seemed to be flying like a truck...

Luthier, you really need to find what is happening here, it's making the game unplayable.

As a side note, the game is perfectly usable now in terms of FPS and no more stutters. Good job !!!!

ps: pre render at 0

I have same problem with input lag, most noticeable on the guns/cannon triggers.

Its a few milliseconds off, but enough to be 'uncool'.

I have Warthog and Cougar, both the same, running them without software at the moment (not target or CCP)

System
Win7 64bit
i7-2600
8gb ram
HD6990 .

:(

The lag doesn't hold on the stick. It also affects the clickable pit. I couldn't manipulate levers today and it also stopped with the keyboard commands. I ended up after much trouble starting etc. flying in dirty plane configuration. Throttle isn't always copied or only picks up after 0-100% movements.

Q9550 @ 3,4
4GB ram
2x HD 4890OC xfire
Saitek x52 pro
Saitek lever quadrant
Saitek rudders
Win7 ultimate 64

Up because this NEEDS to be fixed. Not playable as it is now.

I just noticed one thing..

If I reduce my resolution from 1920x1080 to 1280x720, I have no input lag/delay anymore...

I dont get why this could be graphically related, but it is...

With this new beta patch the input lag in COD on my computer seems to be gone completly. I run a 1680 x 1050 resolution and even switched some settings from low to medium now in the graphic settings and with this new patch the input lag has gone completly.
I think the input is performance related, switching to lower frameresolution and lowering graphic settings might reduce the input lag... With the upcomming new patch I hope the input lag will disappear for others too.

Also,mouse lag made unconfortable to use clickable cockpits.

Still a problem for me, and just as bad as it ever was. Nothing previously suggested makes the slightest bit of difference. I wish idiots would stop with the but, but, anthropomorphic control!!! take two seconds to think about what that option actually is, and then why it should make absolutely no difference to firing, even if it was on (it isn't)

Unplayable.

.... still the same lag after patch 2 ..... :-(