I couldn't find a solution to my problem even after searching all the resources for 4 hours, so i want to try this way

My passanger trains seem to effected by the freighttrains switch as well. I have a feeling they are effected even more but didn't run any tests on that. The game started with freighttrains=10 (I believe) but any changes, even switching this off don't seem to have effect.
My settings:
OS: Win XP Professional
TTD: Windows version
TTDPatch:
- game started with A50
- current A52
Train Set: DB Set XL (v0.82)
I'd appriciate any hints of what I might be doing wrong. Thanks ahead...