Thanks for the fast reply!!!
I’m using a 17″ 4:3 TFT at the moment, but finally it’s gonna running on a 19″ 4:3. Resolution? I don’t know, i just plugged in the cable ;)
Your suggestion worked partially. SNES + NES is fixed now.
Some screens still have this issue:
MAME, Master System, Playstation
How can I repair this on my own stil the next update is available?