Lightroom: Slideshow module has bugs

Well, I have confirmed with two other POTN members that the Slideshow module in Lightroom has bugs with the fact of bad jaggies/aliasing upon exporting in pdf. This is not a platform issue, but a bug.

As a result, I am going to be using Fotomagico for developing slideshows of exported Tiff files from LR vs the LR slideshow module.

Would someone mind telling me the best way to report these issues to Adobe?

Thanks,
Pat