Damn it you’re right, this failure was caused by another Plugin called “NextGEN Gallery Optimizer” (Version 1.1.2)
Thanks a lot
That’s it! Some Thumbs were 150×74 instead of 150×75.
Seems to be a little bug of NG because i changed exactly those thumbs by using the NG function.
I solved the problem by editing the thumbnails that were 150×74 again. It worked this time.
Thanks a lot, edlund!
I’ve tried to remove the “height : auto;” line from the “style.css” (in “#content img) as you told me but the only thing that happened was that all my other pictures lost their heightscale. the “empty spaces” between the thumbs remained. that’s so strange.
