I haven't found a contrast adjustment yet...not only that, but I have not installed the software it came with, as I usually find that monitor software is less than helpful.
I will try the mentioned settings and see...
I paid $361 and it is practically new...no defects, no scratches, nothing.
Although, I do notice that this panel gets significantly hotter than my acer...I can actually fee heat coming off of screen...not crazy, but definitely noticable.
I believe the 2407 is sig. different from the E248...but not so much from the 2405.
I had to go with the acer at the time, as it was the best ws lcd I could afford and the resolution of the 24" at the time would have crippled my hardware at the settings I like (high, with AA and AF).