[Plugin: JJ NextGen JQuery Carousel] Auto crop thumbnail?

I used TimThumb to get around this problem.
Upload TimThumb in your theme directory and edit jj_ngg_jquery_carousel.php (plugin-directory -> includes).

Search for this:
$output .= "<img src=\"" . $image->imageURL . "\" " . $image_description . $width_d . $height_d . " border=\"0\" />";

Replace with:
$output .= "<a href=\"" . $image->imageURL . "\"><img src=\"" . get_bloginfo('template_directory') . "/timthumb.php?h=" . $height . "&w=" . $width . "&src=" . $image->imageURL . "\" " . $image_description . $width_d . $height_d . " border=\"0\" /></a>";

‘unwohltaeter’ Thank you!

instead of that, you can find that same code line

$output .= “<img src=\”” . $image->imageURL . “\” ” . $image_description . $width_d . $height_d . ” border=\”0\” />”;

and change

$width_d . $height_d to $max_width_d . $max_height_d