I have the same issue, but do not have an Acer computer. I have an nVidia GeForce 540m graphics cards and can run SL in high or ultra high graphics with barely any lag (unless in highly populated areas).
However, when I take a pic often I crash. I do save my pics to my computer, but the crashes seem to occur seconds after I press the button to take the pic. To take 5 pics I will end up crashing about 8 times. Frustrating for a blogger.