I am trying to resize the feature thumbnail. The original is 150x150 pixels but I would like to show a larger version. It seems that when I do this, it always defaults to the original size - I can make it smaller though. It also maintains the aspect ratio although I would rather it did not.
[post-list numberposts=6 category=show orderby=post_date order=DESC show_excerpt=1 excerpt_length=20 show_image=1 image_width=300 image_height=300]
Do I have something wrong in the syntax? How can I make the images larger than the original and cropped to a different proportion?