I am a huge Pinball Fantasies fan and still have the old 3,14 MB discs and the manual. :) I bought the Pinball Pack yesterday. Is there a way to disable scrolling and change to a single screen mode like in Balls of Steel?

Only in Pinball Illusions, if you choose a high enough resolution you will see the entire table (looks ugly though).
With all the other games I'm afraid you will have to do with scrolling, you can make it scroll less by choosing high res in the options.

Ok, thank you. :) The tables work well but the audio is out of sync., especially of the bumpers. Cycles are set to 3000 - should I increase them? Or which settings for Dosbox are best? Direct3d, ddraw, opengl?

My computer: Win 7 64bit, 1920x1080p resolution.

Yes, increase cycles, I think I set it to 20000 or so.
For output surface or overlay is the fastest, though surface only supports original resolutions, use ddraw, direct3d or opengl if you want to apply a filter.

Thanks. Is it the following lines in the dosboxILLUSIONS.conf file?

core=auto
cycles=auto
cycleup=1000
cycledown=1000

core=auto
cycles=20000
cycleup=20000
cycledown=20000

?

Please help. :)

Yea that's ok.
Cycle up and down don't need changing, it's only if you want to do it manually (Ctrl-F11/F12).

Thank you very much! :)