When I try to batch add my pictures in to a album. While listing all the pictures on the place where I expect previews/thumbnails all I see is Crosses. When I press "add pictures" The result is I get message:
Niet in staat de verkleinde afbeelding of de afmetingen van de afbeelding aan te passen. (Dutch) Wich means:
Impossible to modify thumbnail or size of picture.
I use the 1.42 version wich is installe via fantastico
Problem solved!
I had image magic as image library. Changed it to GD2.
You should upgrade to v 1.4.6 since there have been a few security fixes since the version you are using.