[Plugin: NextGEN Gallery] Post preview vs actual post problems

Hi again,

Using WP 2.9.2, Nextgen Gallery 1.5.3, Canvas Theme.

Now, I see the following issue. I put a gallery into my post. I preview the post and I see the image(s). I publish the post, but I do not see any images at all in my published blog post.

Also, it seems no matter which nextgen gallery tag I put into my post, the result doesn’t change, no difference in image presentation/functionality etc in the post preview.

Any ideas about what could be going on?

Thanks much!

RK