@Raziel
>I'm pretty sure AmigaOS' way to calculate the frequencies is just a tad off, which leads to the frequencies being always
>outside your monitors values.
>
>Bad comes to worse since you only have that tight window of VSync possibilities.
>I'm pretty sure you could make it work with just a little bit more frequency space...but, damn.
Well, after all, this is not a big problem as I usually do not need low screen resolutions... Just some games cannot now be run directly under OS4.1, e.g. 'Hibernated'. But it still runs ok with E-UAE 1.0.0 if run from cli (it opens then a 800x600 screen), instead of trying to boot it directly from the .adf file.
>I take it you tried the "Detect Settings automatically"?
Yes, I used originally that setting, before I started to test the manually defined modes.
>Well, christmas is coming...time to get a new monitor(?)
After reading your signature, I would newer dare to waste the resources of our planet for such...

!
But seriously speaking, I already have at home a relatively new Nec, with the same max resolution as this old Eizo at my work room. It has no frequency limitations for the digital mode. I hope I get an opportunity test it with this 6450...