Ok I'm not new to lock on I'v had it for almost 2 years now and never had any problems till I got my new pc and got vista. I'v Got 4 GB of ram an Intel Core 2 Duo cps and 2 9800gtx but for some unknown reason when I fly the F-15 and change to cockpit view I get 15-24 FPS and when I fly other jets I get 50-100 FPS. I even changed the setting to low and it's still lagging. Any ideas on why it's doing this?

That's probably more about LOMAc and less about Vista. Lomac's engine was written just after Moses carried the tablets down from the mountaintop.

Do you have canopy scratches, and or reflections enabled on the F15 and not on the others. They both have a significant affect on FPS.

No I don't have scratches on and reflections is set on low. Even when everything is set on low it still lags, i'm getting really ****ed cuz I can't even fly the F-15. Anyone had or having the same problem and any ideas in how to fix it?

CHANGE BACK TO YOUR OLD WINDOWS VERSION!! i heard that the VISTA ULTIMATE was really good. they say that u have more freedom and ist's more compatible with other programs