check this post. The slideshow size is dependent on your image size. If you have different image sizes the slideshow plugin will average them. Best thing is to size your images to a consistent height and width.
http://www.oxwall.org/forum/topic/11363?page=1#post-140701

Darryl +1

hy ros. sorry my english... j have pay for remove oxwall footer

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But j have probelm remove.

Tnaks for support

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sorry j have not this mail on my inbox