So you mean: /usr/bin/convert '/path/to/image/Rodelverleih-Soell-2.JPG' '-thumbnail' '960x638>' '-quality' '90' '/path/to/image/thumbnails/Rodelverleih-Soell-2_960x638.JPG' ??
Call was working with no problems in 6.2.8 - but will try it - thank you!
Andreas