My v700 that I used when I was still shooting film came with two programs, epson's own and silverfast. Try the one you're not currently using and see if it helps. You could also try different film settings, like color negative and positive, and then convert to bw/invert in photoshop.
Also, generally you don't scan more than one photo at a time, unless it's two frames with the same subject, lighting and camera settings, but of course you know this right?