I solved the puzzle
My imagemagick is not working ( i dont know why)
but everytime i add a image, the ootin to use a miniature is clicked and the dimensions get wrong...if i put to not use miniatures, the dimensions gets ok!
go figure
Oh, and theres a another bug, but it is completly correctabler by hand. its something i have lived with even in the beggining: When a insert a image, in the code it is inserted with 2 dots, e.g. image..jpg i dont know if there is something to do with the real problem, i just take out tje extra dot ...