Sorry I'm jumping in the discussion to ask more and more question... Looks like we're a few at the beginner scanning stage!
Here is a screenshot of my epson software scanning a B&W

Untitled by
Lemaildetom on Talk Photography
- I have notice that for Black and White negative, if i use the auto-tune button (the black ball with to red triangle), the software usually clip some of the data so I then re-ajust the high and low in the histogram. With colour negative so far, I get better result with the auto-tune button than when i try to spend ages (even tried a bit of vuescan but it's not made anything easier), at the end it seems that the auto settings are doing a good job at colour? Anyone as similar experiences? Or is it me being lucky (i've only try one roll of colour so far)
-I don't understand much how is the output cursors affect the scan? It seems natural to me to match the input with the output. But it doesn't seems to be the case!
-I leave the curve to normal
-A last question It seems like you can't lock the setting. Once you have your setting ready if you extend the cropping area the setting are totally changed, is there a lock setting button somewhere?
It's been great reading that thread so far, hope I'm not bothering you with my question
PS: I played with the dust removal, it does work ok for some shot but you need to check all the output as it does some weird things from time to time. As a shot where someone nose was taken for a spot and another one were the edge of the face was taken for a dust spot... It doesn't smoothen the picture that bad but doesn't either get all the dust out.
PPS: I need to spend more time with this but don't find many evening to do so. I spend 2 hours yesterday sorting a problem which wasn't one. I have an epson 4990 and got some digitaliza film holder for a really good price on ebay recently. If I put the film holder with it's top edge touching the top edge of the scanner (where you would put it to be center and aligned). The picture came out either strippy or totally black. Moving the holder 2 cm down make it work perfectly. After spending a couple of hours trying to sort the heigh of the holder, the scanner setting. I realised the position of the holder was the error.... I can't understand why it is like this because the normal film holder was sitting on top of the scanner without any problem...