I'm experiencing two problems.

First, I have lag between mouse movement and image movement on the computer. This may be due to the type of computer I'm running on (a laptop with a Core 2 Duo) and the graphics card (ATI Mobility Radeon HD 3450).

The second is it doesn't take much mouse movement to get a large move on the screen. This is very annoying.

Two questions:

1. how can I diminish the lag between mouse movement and the image? Reduce the resolution? Change something in the .cfg files? In the .Arma2Profile file?

2. how can I decrease the sensitivity to mouse movement so it takes much more movement to generate the same screen movement as before? I've played with the X-axis, Y-axis and Smoothing scales in the Options>Controls section, but with no satisfactory result.

I searched for previous posts (here and on the 'official' forum) but these were very cryptic.

Thanks in advance for the help.