for some reason the bf2 and bf2142 lags when i put reselution on 1650x1050 with my pc specs shoudent it not lagg?

Please, as I said, be patient.  We are not always around, sometimes it WILL be a few hours before we answer. All our support people for First Strike happen to be extremely busy.  Also please don't double post if you can avoid it, use the edit button at the bottom right of your post:

As for your resolution "lag", what do you mean? Lag suggests increased latency, do you mean you have an FPS drop?

No it shouldn't. My rig is close to yours and I run all settings maxed out at 1680 x 1050. My fps is generally around 80-90 but can drop to 40 or so in intense battles and in certain areas like the mines on Ryloth and even lower around the huge turbolasers on Bandomeer. Have you checked your actual FPS with Fraps?