LaserSoft Imaging

Hi there,
I recently obtained a Canoscan 9000F to use it for scanning my 35mm and medium format negatives. While everything else seems to be clear to me I cannot figure out how to properly use the color correction tools when batch scanning several frames of a film slide.
After Prescanning I create all of the frames I want to scan and set the proper film brand and resolution. Then I select the first frame and color correct it via the histogram and the curve tool until it looks good. So far so good - my problem is that as soon as I want to color correct the second frame the appearance of my first frame changes as well, although it is not selected. Sometimes the appearance even changes as soon as I just select the next frame without using any of the color correction tools. I must be possible to color correct each selected frame individually isn't it? What am I missing or what am I doing wrong?
It would be great if anybody could help me on this one.
Thanks a lot!

Dear mts,

The entire preview always uses the settings for the currently activated frame.
This does not change the settings you have chosen for your first image.
So there is nothing to worry about.

kind regards,
Arne Ketelhohn.

I am amazed how you guys let it go this far without applying color correction only to the selected frame.