When I set up my picture page with [[!img defaults size=300x]] then the html validator complains that the value for height is missing and the IE browsers won't show the pictures up at all; no problems with ff tho. If I set up my picture page with [[!img defaults size=300x300]] then all the images are funny stretched. What am I doing wrong?

This is a bug. --Joey

And .. fixed --Joey

Not quite; For some reason it requires me to update wiki pages twice before the height value shows up.